Home / 1,803.46-2,487.12-1,139.14

Finding the Fourth Proportional to 1,803.46, 2,487.12 and 1,139.14

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Solution

The fourth proportional to 1,803.46, 2,487.12 and 1,139.14 is: 1,570.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.46 : 2,487.12 = 1,139.14 : x
  2. Step 2: Convert to fraction form
    1,803.46/2,487.12 = 1,139.14/x
  3. Step 3: Cross multiply
    1,803.46x = 2,487.12 × 1,139.14
  4. Step 4: Simplify right side
    1,803.46x = 2,833,177.88
  5. Step 5: Solve for x
    x = 2,833,177.88/1,803.46
  6. Step 6: Final answer
    x = 1,570.97

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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.