Home / 3,124.87-4,312.27-1,708.56

Finding the Fourth Proportional to 3,124.87, 4,312.27 and 1,708.56

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Solution

The fourth proportional to 3,124.87, 4,312.27 and 1,708.56 is: 2,357.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.87 : 4,312.27 = 1,708.56 : x
  2. Step 2: Convert to fraction form
    3,124.87/4,312.27 = 1,708.56/x
  3. Step 3: Cross multiply
    3,124.87x = 4,312.27 × 1,708.56
  4. Step 4: Simplify right side
    3,124.87x = 7,367,774.17
  5. Step 5: Solve for x
    x = 7,367,774.17/3,124.87
  6. Step 6: Final answer
    x = 2,357.79

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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.