Home / 7,139.60-9,852.38-3,952.83

Finding the Fourth Proportional to 7,139.60, 9,852.38 and 3,952.83

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Solution

The fourth proportional to 7,139.60, 9,852.38 and 3,952.83 is: 5,454.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.60 : 9,852.38 = 3,952.83 : x
  2. Step 2: Convert to fraction form
    7,139.60/9,852.38 = 3,952.83/x
  3. Step 3: Cross multiply
    7,139.60x = 9,852.38 × 3,952.83
  4. Step 4: Simplify right side
    7,139.60x = 38,944,837.48
  5. Step 5: Solve for x
    x = 38,944,837.48/7,139.60
  6. Step 6: Final answer
    x = 5,454.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.