Home / 5,258.85-7,887.15-1,972.18

Finding the Fourth Proportional to 5,258.85, 7,887.15 and 1,972.18

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Solution

The fourth proportional to 5,258.85, 7,887.15 and 1,972.18 is: 2,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258.85 : 7,887.15 = 1,972.18 : x
  2. Step 2: Convert to fraction form
    5,258.85/7,887.15 = 1,972.18/x
  3. Step 3: Cross multiply
    5,258.85x = 7,887.15 × 1,972.18
  4. Step 4: Simplify right side
    5,258.85x = 15,554,879.49
  5. Step 5: Solve for x
    x = 15,554,879.49/5,258.85
  6. Step 6: Final answer
    x = 2,957.85

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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.