Home / 1,776.20-2,453.15-1,113.62

Finding the Fourth Proportional to 1,776.20, 2,453.15 and 1,113.62

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Solution

The fourth proportional to 1,776.20, 2,453.15 and 1,113.62 is: 1,538.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.20 : 2,453.15 = 1,113.62 : x
  2. Step 2: Convert to fraction form
    1,776.20/2,453.15 = 1,113.62/x
  3. Step 3: Cross multiply
    1,776.20x = 2,453.15 × 1,113.62
  4. Step 4: Simplify right side
    1,776.20x = 2,731,867.42
  5. Step 5: Solve for x
    x = 2,731,867.42/1,776.20
  6. Step 6: Final answer
    x = 1,538.04

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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.