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Finding the Fourth Proportional to 2,345.55, 3,518.32 and 614.17

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Solution

The fourth proportional to 2,345.55, 3,518.32 and 614.17 is: 921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.55 : 3,518.32 = 614.17 : x
  2. Step 2: Convert to fraction form
    2,345.55/3,518.32 = 614.17/x
  3. Step 3: Cross multiply
    2,345.55x = 3,518.32 × 614.17
  4. Step 4: Simplify right side
    2,345.55x = 2,160,846.59
  5. Step 5: Solve for x
    x = 2,160,846.59/2,345.55
  6. Step 6: Final answer
    x = 921.25

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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.