Home / 2,891.46-3,989.98-1,632.82

Finding the Fourth Proportional to 2,891.46, 3,989.98 and 1,632.82

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Solution

The fourth proportional to 2,891.46, 3,989.98 and 1,632.82 is: 2,253.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.46 : 3,989.98 = 1,632.82 : x
  2. Step 2: Convert to fraction form
    2,891.46/3,989.98 = 1,632.82/x
  3. Step 3: Cross multiply
    2,891.46x = 3,989.98 × 1,632.82
  4. Step 4: Simplify right side
    2,891.46x = 6,514,895.11
  5. Step 5: Solve for x
    x = 6,514,895.11/2,891.46
  6. Step 6: Final answer
    x = 2,253.15

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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.