Home / 5,270.18-7,906.40-1,572.70

Finding the Fourth Proportional to 5,270.18, 7,906.40 and 1,572.70

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Solution

The fourth proportional to 5,270.18, 7,906.40 and 1,572.70 is: 2,359.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.18 : 7,906.40 = 1,572.70 : x
  2. Step 2: Convert to fraction form
    5,270.18/7,906.40 = 1,572.70/x
  3. Step 3: Cross multiply
    5,270.18x = 7,906.40 × 1,572.70
  4. Step 4: Simplify right side
    5,270.18x = 12,434,395.28
  5. Step 5: Solve for x
    x = 12,434,395.28/5,270.18
  6. Step 6: Final answer
    x = 2,359.39

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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.