Home / 3,124.94-4,312.28-1,708.62

Finding the Fourth Proportional to 3,124.94, 4,312.28 and 1,708.62

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Solution

The fourth proportional to 3,124.94, 4,312.28 and 1,708.62 is: 2,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.94 : 4,312.28 = 1,708.62 : x
  2. Step 2: Convert to fraction form
    3,124.94/4,312.28 = 1,708.62/x
  3. Step 3: Cross multiply
    3,124.94x = 4,312.28 × 1,708.62
  4. Step 4: Simplify right side
    3,124.94x = 7,368,039.31
  5. Step 5: Solve for x
    x = 7,368,039.31/3,124.94
  6. Step 6: Final answer
    x = 2,357.82

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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.