Home / 5,153.03-7,729.51-1,257.47

Finding the Fourth Proportional to 5,153.03, 7,729.51 and 1,257.47

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Solution

The fourth proportional to 5,153.03, 7,729.51 and 1,257.47 is: 1,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.03 : 7,729.51 = 1,257.47 : x
  2. Step 2: Convert to fraction form
    5,153.03/7,729.51 = 1,257.47/x
  3. Step 3: Cross multiply
    5,153.03x = 7,729.51 × 1,257.47
  4. Step 4: Simplify right side
    5,153.03x = 9,719,626.94
  5. Step 5: Solve for x
    x = 9,719,626.94/5,153.03
  6. Step 6: Final answer
    x = 1,886.20

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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.