Home / 5,124.90-7,680.93-2,658.30

Finding the Fourth Proportional to 5,124.90, 7,680.93 and 2,658.30

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Solution

The fourth proportional to 5,124.90, 7,680.93 and 2,658.30 is: 3,984.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.90 : 7,680.93 = 2,658.30 : x
  2. Step 2: Convert to fraction form
    5,124.90/7,680.93 = 2,658.30/x
  3. Step 3: Cross multiply
    5,124.90x = 7,680.93 × 2,658.30
  4. Step 4: Simplify right side
    5,124.90x = 20,418,216.22
  5. Step 5: Solve for x
    x = 20,418,216.22/5,124.90
  6. Step 6: Final answer
    x = 3,984.12

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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.