Home / 5,426.87-8,139.15-1,530.36

Finding the Fourth Proportional to 5,426.87, 8,139.15 and 1,530.36

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Solution

The fourth proportional to 5,426.87, 8,139.15 and 1,530.36 is: 2,295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.87 : 8,139.15 = 1,530.36 : x
  2. Step 2: Convert to fraction form
    5,426.87/8,139.15 = 1,530.36/x
  3. Step 3: Cross multiply
    5,426.87x = 8,139.15 × 1,530.36
  4. Step 4: Simplify right side
    5,426.87x = 12,455,829.59
  5. Step 5: Solve for x
    x = 12,455,829.59/5,426.87
  6. Step 6: Final answer
    x = 2,295.22

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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.