Home / 5,426.59-8,140.53-1,915.87

Finding the Fourth Proportional to 5,426.59, 8,140.53 and 1,915.87

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Solution

The fourth proportional to 5,426.59, 8,140.53 and 1,915.87 is: 2,874.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.59 : 8,140.53 = 1,915.87 : x
  2. Step 2: Convert to fraction form
    5,426.59/8,140.53 = 1,915.87/x
  3. Step 3: Cross multiply
    5,426.59x = 8,140.53 × 1,915.87
  4. Step 4: Simplify right side
    5,426.59x = 15,596,197.21
  5. Step 5: Solve for x
    x = 15,596,197.21/5,426.59
  6. Step 6: Final answer
    x = 2,874.03

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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.