Home / 5,151.18-7,108.98-2,913.06

Finding the Fourth Proportional to 5,151.18, 7,108.98 and 2,913.06

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Solution

The fourth proportional to 5,151.18, 7,108.98 and 2,913.06 is: 4,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.18 : 7,108.98 = 2,913.06 : x
  2. Step 2: Convert to fraction form
    5,151.18/7,108.98 = 2,913.06/x
  3. Step 3: Cross multiply
    5,151.18x = 7,108.98 × 2,913.06
  4. Step 4: Simplify right side
    5,151.18x = 20,708,878.56
  5. Step 5: Solve for x
    x = 20,708,878.56/5,151.18
  6. Step 6: Final answer
    x = 4,020.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.