Home / 4,759.20-7,138.88-3,126.08

Finding the Fourth Proportional to 4,759.20, 7,138.88 and 3,126.08

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Solution

The fourth proportional to 4,759.20, 7,138.88 and 3,126.08 is: 4,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.20 : 7,138.88 = 3,126.08 : x
  2. Step 2: Convert to fraction form
    4,759.20/7,138.88 = 3,126.08/x
  3. Step 3: Cross multiply
    4,759.20x = 7,138.88 × 3,126.08
  4. Step 4: Simplify right side
    4,759.20x = 22,316,709.99
  5. Step 5: Solve for x
    x = 22,316,709.99/4,759.20
  6. Step 6: Final answer
    x = 4,689.17

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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.