Home / 1,872.41-2,810.33-948.61

Finding the Fourth Proportional to 1,872.41, 2,810.33 and 948.61

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Solution

The fourth proportional to 1,872.41, 2,810.33 and 948.61 is: 1,423.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.41 : 2,810.33 = 948.61 : x
  2. Step 2: Convert to fraction form
    1,872.41/2,810.33 = 948.61/x
  3. Step 3: Cross multiply
    1,872.41x = 2,810.33 × 948.61
  4. Step 4: Simplify right side
    1,872.41x = 2,665,897.22
  5. Step 5: Solve for x
    x = 2,665,897.22/1,872.41
  6. Step 6: Final answer
    x = 1,423.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.