Home / 5,125.40-7,677.30-4,578.20

Finding the Fourth Proportional to 5,125.40, 7,677.30 and 4,578.20

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Solution

The fourth proportional to 5,125.40, 7,677.30 and 4,578.20 is: 6,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.40 : 7,677.30 = 4,578.20 : x
  2. Step 2: Convert to fraction form
    5,125.40/7,677.30 = 4,578.20/x
  3. Step 3: Cross multiply
    5,125.40x = 7,677.30 × 4,578.20
  4. Step 4: Simplify right side
    5,125.40x = 35,148,214.86
  5. Step 5: Solve for x
    x = 35,148,214.86/5,125.40
  6. Step 6: Final answer
    x = 6,857.65

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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.