Home / 4,677.30-7,013.49-1,389.90

Finding the Fourth Proportional to 4,677.30, 7,013.49 and 1,389.90

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Solution

The fourth proportional to 4,677.30, 7,013.49 and 1,389.90 is: 2,084.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,677.30 : 7,013.49 = 1,389.90 : x
  2. Step 2: Convert to fraction form
    4,677.30/7,013.49 = 1,389.90/x
  3. Step 3: Cross multiply
    4,677.30x = 7,013.49 × 1,389.90
  4. Step 4: Simplify right side
    4,677.30x = 9,748,049.75
  5. Step 5: Solve for x
    x = 9,748,049.75/4,677.30
  6. Step 6: Final answer
    x = 2,084.12

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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.