Home / 5,437.80-8,158.05-1,542.20

Finding the Fourth Proportional to 5,437.80, 8,158.05 and 1,542.20

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Solution

The fourth proportional to 5,437.80, 8,158.05 and 1,542.20 is: 2,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,437.80 : 8,158.05 = 1,542.20 : x
  2. Step 2: Convert to fraction form
    5,437.80/8,158.05 = 1,542.20/x
  3. Step 3: Cross multiply
    5,437.80x = 8,158.05 × 1,542.20
  4. Step 4: Simplify right side
    5,437.80x = 12,581,303.92
  5. Step 5: Solve for x
    x = 12,581,303.92/5,437.80
  6. Step 6: Final answer
    x = 2,313.68

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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.