Home / 2,117.20-2,920.76-1,232.76

Finding the Fourth Proportional to 2,117.20, 2,920.76 and 1,232.76

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Solution

The fourth proportional to 2,117.20, 2,920.76 and 1,232.76 is: 1,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.20 : 2,920.76 = 1,232.76 : x
  2. Step 2: Convert to fraction form
    2,117.20/2,920.76 = 1,232.76/x
  3. Step 3: Cross multiply
    2,117.20x = 2,920.76 × 1,232.76
  4. Step 4: Simplify right side
    2,117.20x = 3,600,596.10
  5. Step 5: Solve for x
    x = 3,600,596.10/2,117.20
  6. Step 6: Final answer
    x = 1,700.64

Related Problems

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Half scale
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Double scale
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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.