Home / 3,953.64-5,931.10-1,217

Finding the Fourth Proportional to 3,953.64, 5,931.10 and 1,217

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Solution

The fourth proportional to 3,953.64, 5,931.10 and 1,217 is: 1,825.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.64 : 5,931.10 = 1,217 : x
  2. Step 2: Convert to fraction form
    3,953.64/5,931.10 = 1,217/x
  3. Step 3: Cross multiply
    3,953.64x = 5,931.10 × 1,217
  4. Step 4: Simplify right side
    3,953.64x = 7,218,148.70
  5. Step 5: Solve for x
    x = 7,218,148.70/3,953.64
  6. Step 6: Final answer
    x = 1,825.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.