Home / 5,140.03-7,710.05-4,738.78

Finding the Fourth Proportional to 5,140.03, 7,710.05 and 4,738.78

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Solution

The fourth proportional to 5,140.03, 7,710.05 and 4,738.78 is: 7,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.03 : 7,710.05 = 4,738.78 : x
  2. Step 2: Convert to fraction form
    5,140.03/7,710.05 = 4,738.78/x
  3. Step 3: Cross multiply
    5,140.03x = 7,710.05 × 4,738.78
  4. Step 4: Simplify right side
    5,140.03x = 36,536,230.74
  5. Step 5: Solve for x
    x = 36,536,230.74/5,140.03
  6. Step 6: Final answer
    x = 7,108.17

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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.