Home / 1,803.38-2,487.02-1,139.08

Finding the Fourth Proportional to 1,803.38, 2,487.02 and 1,139.08

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Solution

The fourth proportional to 1,803.38, 2,487.02 and 1,139.08 is: 1,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.38 : 2,487.02 = 1,139.08 : x
  2. Step 2: Convert to fraction form
    1,803.38/2,487.02 = 1,139.08/x
  3. Step 3: Cross multiply
    1,803.38x = 2,487.02 × 1,139.08
  4. Step 4: Simplify right side
    1,803.38x = 2,832,896.61
  5. Step 5: Solve for x
    x = 2,832,896.61/1,803.38
  6. Step 6: Final answer
    x = 1,570.88

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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.