Home / 1,242.14-1,715.88-1,176.53

Finding the Fourth Proportional to 1,242.14, 1,715.88 and 1,176.53

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Solution

The fourth proportional to 1,242.14, 1,715.88 and 1,176.53 is: 1,625.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242.14 : 1,715.88 = 1,176.53 : x
  2. Step 2: Convert to fraction form
    1,242.14/1,715.88 = 1,176.53/x
  3. Step 3: Cross multiply
    1,242.14x = 1,715.88 × 1,176.53
  4. Step 4: Simplify right side
    1,242.14x = 2,018,780.13
  5. Step 5: Solve for x
    x = 2,018,780.13/1,242.14
  6. Step 6: Final answer
    x = 1,625.25

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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.