Home / 5,087.04-7,630.56-1,389.66

Finding the Fourth Proportional to 5,087.04, 7,630.56 and 1,389.66

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Solution

The fourth proportional to 5,087.04, 7,630.56 and 1,389.66 is: 2,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.04 : 7,630.56 = 1,389.66 : x
  2. Step 2: Convert to fraction form
    5,087.04/7,630.56 = 1,389.66/x
  3. Step 3: Cross multiply
    5,087.04x = 7,630.56 × 1,389.66
  4. Step 4: Simplify right side
    5,087.04x = 10,603,884.01
  5. Step 5: Solve for x
    x = 10,603,884.01/5,087.04
  6. Step 6: Final answer
    x = 2,084.49

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Similar ratio
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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.