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Finding the Fourth Proportional to 1,373.99, 2,061.06 and 400.17

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Solution

The fourth proportional to 1,373.99, 2,061.06 and 400.17 is: 600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373.99 : 2,061.06 = 400.17 : x
  2. Step 2: Convert to fraction form
    1,373.99/2,061.06 = 400.17/x
  3. Step 3: Cross multiply
    1,373.99x = 2,061.06 × 400.17
  4. Step 4: Simplify right side
    1,373.99x = 824,774.38
  5. Step 5: Solve for x
    x = 824,774.38/1,373.99
  6. Step 6: Final answer
    x = 600.28

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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.