Home / 5,489.16-7,572.93-3,130.05

Finding the Fourth Proportional to 5,489.16, 7,572.93 and 3,130.05

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Solution

The fourth proportional to 5,489.16, 7,572.93 and 3,130.05 is: 4,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.16 : 7,572.93 = 3,130.05 : x
  2. Step 2: Convert to fraction form
    5,489.16/7,572.93 = 3,130.05/x
  3. Step 3: Cross multiply
    5,489.16x = 7,572.93 × 3,130.05
  4. Step 4: Simplify right side
    5,489.16x = 23,703,649.55
  5. Step 5: Solve for x
    x = 23,703,649.55/5,489.16
  6. Step 6: Final answer
    x = 4,318.27

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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.