Home / 5,157.76-7,117.28-3,061.52

Finding the Fourth Proportional to 5,157.76, 7,117.28 and 3,061.52

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Solution

The fourth proportional to 5,157.76, 7,117.28 and 3,061.52 is: 4,224.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.76 : 7,117.28 = 3,061.52 : x
  2. Step 2: Convert to fraction form
    5,157.76/7,117.28 = 3,061.52/x
  3. Step 3: Cross multiply
    5,157.76x = 7,117.28 × 3,061.52
  4. Step 4: Simplify right side
    5,157.76x = 21,789,695.07
  5. Step 5: Solve for x
    x = 21,789,695.07/5,157.76
  6. Step 6: Final answer
    x = 4,224.64

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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.