Home / 3,715.76-5,125.64-3,055.70

Finding the Fourth Proportional to 3,715.76, 5,125.64 and 3,055.70

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Solution

The fourth proportional to 3,715.76, 5,125.64 and 3,055.70 is: 4,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.76 : 5,125.64 = 3,055.70 : x
  2. Step 2: Convert to fraction form
    3,715.76/5,125.64 = 3,055.70/x
  3. Step 3: Cross multiply
    3,715.76x = 5,125.64 × 3,055.70
  4. Step 4: Simplify right side
    3,715.76x = 15,662,418.15
  5. Step 5: Solve for x
    x = 15,662,418.15/3,715.76
  6. Step 6: Final answer
    x = 4,215.13

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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.