Home / 5,098.28-7,647.21-1,400.90

Finding the Fourth Proportional to 5,098.28, 7,647.21 and 1,400.90

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Solution

The fourth proportional to 5,098.28, 7,647.21 and 1,400.90 is: 2,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,098.28 : 7,647.21 = 1,400.90 : x
  2. Step 2: Convert to fraction form
    5,098.28/7,647.21 = 1,400.90/x
  3. Step 3: Cross multiply
    5,098.28x = 7,647.21 × 1,400.90
  4. Step 4: Simplify right side
    5,098.28x = 10,712,938.25
  5. Step 5: Solve for x
    x = 10,712,938.25/5,098.28
  6. Step 6: Final answer
    x = 2,101.29

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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.