Home / 2,672.47-3,688.14-1,493.65

Finding the Fourth Proportional to 2,672.47, 3,688.14 and 1,493.65

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Solution

The fourth proportional to 2,672.47, 3,688.14 and 1,493.65 is: 2,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.47 : 3,688.14 = 1,493.65 : x
  2. Step 2: Convert to fraction form
    2,672.47/3,688.14 = 1,493.65/x
  3. Step 3: Cross multiply
    2,672.47x = 3,688.14 × 1,493.65
  4. Step 4: Simplify right side
    2,672.47x = 5,508,790.31
  5. Step 5: Solve for x
    x = 5,508,790.31/2,672.47
  6. Step 6: Final answer
    x = 2,061.31

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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.