Home / 2,312.40-3,192.84-1,614.72

Finding the Fourth Proportional to 2,312.40, 3,192.84 and 1,614.72

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Solution

The fourth proportional to 2,312.40, 3,192.84 and 1,614.72 is: 2,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.40 : 3,192.84 = 1,614.72 : x
  2. Step 2: Convert to fraction form
    2,312.40/3,192.84 = 1,614.72/x
  3. Step 3: Cross multiply
    2,312.40x = 3,192.84 × 1,614.72
  4. Step 4: Simplify right side
    2,312.40x = 5,155,542.60
  5. Step 5: Solve for x
    x = 5,155,542.60/2,312.40
  6. Step 6: Final answer
    x = 2,229.52

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1.5x scale

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.