Home / 5,157-7,117.56-3,061.08

Finding the Fourth Proportional to 5,157, 7,117.56 and 3,061.08

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Solution

The fourth proportional to 5,157, 7,117.56 and 3,061.08 is: 4,224.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157 : 7,117.56 = 3,061.08 : x
  2. Step 2: Convert to fraction form
    5,157/7,117.56 = 3,061.08/x
  3. Step 3: Cross multiply
    5,157x = 7,117.56 × 3,061.08
  4. Step 4: Simplify right side
    5,157x = 21,787,420.56
  5. Step 5: Solve for x
    x = 21,787,420.56/5,157
  6. Step 6: Final answer
    x = 4,224.82

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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.