Home / 5,428.04-8,142.04-5,151.02

Finding the Fourth Proportional to 5,428.04, 8,142.04 and 5,151.02

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Solution

The fourth proportional to 5,428.04, 8,142.04 and 5,151.02 is: 7,726.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.04 : 8,142.04 = 5,151.02 : x
  2. Step 2: Convert to fraction form
    5,428.04/8,142.04 = 5,151.02/x
  3. Step 3: Cross multiply
    5,428.04x = 8,142.04 × 5,151.02
  4. Step 4: Simplify right side
    5,428.04x = 41,939,810.88
  5. Step 5: Solve for x
    x = 41,939,810.88/5,428.04
  6. Step 6: Final answer
    x = 7,726.51

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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.