Home / 5,140.98-7,710.51-2,505.84

Finding the Fourth Proportional to 5,140.98, 7,710.51 and 2,505.84

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Solution

The fourth proportional to 5,140.98, 7,710.51 and 2,505.84 is: 3,758.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.98 : 7,710.51 = 2,505.84 : x
  2. Step 2: Convert to fraction form
    5,140.98/7,710.51 = 2,505.84/x
  3. Step 3: Cross multiply
    5,140.98x = 7,710.51 × 2,505.84
  4. Step 4: Simplify right side
    5,140.98x = 19,321,323.90
  5. Step 5: Solve for x
    x = 19,321,323.90/5,140.98
  6. Step 6: Final answer
    x = 3,758.29

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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.