Home / 3,856.48-5,321.76-2,284.32

Finding the Fourth Proportional to 3,856.48, 5,321.76 and 2,284.32

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Solution

The fourth proportional to 3,856.48, 5,321.76 and 2,284.32 is: 3,152.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.48 : 5,321.76 = 2,284.32 : x
  2. Step 2: Convert to fraction form
    3,856.48/5,321.76 = 2,284.32/x
  3. Step 3: Cross multiply
    3,856.48x = 5,321.76 × 2,284.32
  4. Step 4: Simplify right side
    3,856.48x = 12,156,602.80
  5. Step 5: Solve for x
    x = 12,156,602.80/3,856.48
  6. Step 6: Final answer
    x = 3,152.25

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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.