Home / 5,426.29-8,139.42-1,530.79

Finding the Fourth Proportional to 5,426.29, 8,139.42 and 1,530.79

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Solution

The fourth proportional to 5,426.29, 8,139.42 and 1,530.79 is: 2,296.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.29 : 8,139.42 = 1,530.79 : x
  2. Step 2: Convert to fraction form
    5,426.29/8,139.42 = 1,530.79/x
  3. Step 3: Cross multiply
    5,426.29x = 8,139.42 × 1,530.79
  4. Step 4: Simplify right side
    5,426.29x = 12,459,742.74
  5. Step 5: Solve for x
    x = 12,459,742.74/5,426.29
  6. Step 6: Final answer
    x = 2,296.18

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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.