Home / 1,199.59-1,656.23-1,116.90

Finding the Fourth Proportional to 1,199.59, 1,656.23 and 1,116.90

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Solution

The fourth proportional to 1,199.59, 1,656.23 and 1,116.90 is: 1,542.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199.59 : 1,656.23 = 1,116.90 : x
  2. Step 2: Convert to fraction form
    1,199.59/1,656.23 = 1,116.90/x
  3. Step 3: Cross multiply
    1,199.59x = 1,656.23 × 1,116.90
  4. Step 4: Simplify right side
    1,199.59x = 1,849,837.70
  5. Step 5: Solve for x
    x = 1,849,837.70/1,199.59
  6. Step 6: Final answer
    x = 1,542.06

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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.