Home / 1,382.29-1,905.54-1,050.14

Finding the Fourth Proportional to 1,382.29, 1,905.54 and 1,050.14

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Solution

The fourth proportional to 1,382.29, 1,905.54 and 1,050.14 is: 1,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382.29 : 1,905.54 = 1,050.14 : x
  2. Step 2: Convert to fraction form
    1,382.29/1,905.54 = 1,050.14/x
  3. Step 3: Cross multiply
    1,382.29x = 1,905.54 × 1,050.14
  4. Step 4: Simplify right side
    1,382.29x = 2,001,079.79
  5. Step 5: Solve for x
    x = 2,001,079.79/1,382.29
  6. Step 6: Final answer
    x = 1,447.66

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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.