Home / 3,114.28-4,297.53-1,856.76

Finding the Fourth Proportional to 3,114.28, 4,297.53 and 1,856.76

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Solution

The fourth proportional to 3,114.28, 4,297.53 and 1,856.76 is: 2,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.28 : 4,297.53 = 1,856.76 : x
  2. Step 2: Convert to fraction form
    3,114.28/4,297.53 = 1,856.76/x
  3. Step 3: Cross multiply
    3,114.28x = 4,297.53 × 1,856.76
  4. Step 4: Simplify right side
    3,114.28x = 7,979,481.80
  5. Step 5: Solve for x
    x = 7,979,481.80/3,114.28
  6. Step 6: Final answer
    x = 2,562.22

Related Problems

Find fourth proportional to 1,557.14, 2,148.77 and 928.38
Half scale
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Double scale
Find fourth proportional to 3,115.28, 4,298.91 and 1,857.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.