Home / 2,428.10-3,640.74-1,332.18

Finding the Fourth Proportional to 2,428.10, 3,640.74 and 1,332.18

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Solution

The fourth proportional to 2,428.10, 3,640.74 and 1,332.18 is: 1,997.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.10 : 3,640.74 = 1,332.18 : x
  2. Step 2: Convert to fraction form
    2,428.10/3,640.74 = 1,332.18/x
  3. Step 3: Cross multiply
    2,428.10x = 3,640.74 × 1,332.18
  4. Step 4: Simplify right side
    2,428.10x = 4,850,121.01
  5. Step 5: Solve for x
    x = 4,850,121.01/2,428.10
  6. Step 6: Final answer
    x = 1,997.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.