Home / 5,115.28-7,670.44-2,341.12

Finding the Fourth Proportional to 5,115.28, 7,670.44 and 2,341.12

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Solution

The fourth proportional to 5,115.28, 7,670.44 and 2,341.12 is: 3,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.28 : 7,670.44 = 2,341.12 : x
  2. Step 2: Convert to fraction form
    5,115.28/7,670.44 = 2,341.12/x
  3. Step 3: Cross multiply
    5,115.28x = 7,670.44 × 2,341.12
  4. Step 4: Simplify right side
    5,115.28x = 17,957,420.49
  5. Step 5: Solve for x
    x = 17,957,420.49/5,115.28
  6. Step 6: Final answer
    x = 3,510.54

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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.