Home / 5,144.04-7,715.14-1,681.28

Finding the Fourth Proportional to 5,144.04, 7,715.14 and 1,681.28

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Solution

The fourth proportional to 5,144.04, 7,715.14 and 1,681.28 is: 2,521.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.04 : 7,715.14 = 1,681.28 : x
  2. Step 2: Convert to fraction form
    5,144.04/7,715.14 = 1,681.28/x
  3. Step 3: Cross multiply
    5,144.04x = 7,715.14 × 1,681.28
  4. Step 4: Simplify right side
    5,144.04x = 12,971,310.58
  5. Step 5: Solve for x
    x = 12,971,310.58/5,144.04
  6. Step 6: Final answer
    x = 2,521.62

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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.