Home / 1,143.36-1,566.45-1,099.62

Finding the Fourth Proportional to 1,143.36, 1,566.45 and 1,099.62

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Solution

The fourth proportional to 1,143.36, 1,566.45 and 1,099.62 is: 1,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.36 : 1,566.45 = 1,099.62 : x
  2. Step 2: Convert to fraction form
    1,143.36/1,566.45 = 1,099.62/x
  3. Step 3: Cross multiply
    1,143.36x = 1,566.45 × 1,099.62
  4. Step 4: Simplify right side
    1,143.36x = 1,722,499.75
  5. Step 5: Solve for x
    x = 1,722,499.75/1,143.36
  6. Step 6: Final answer
    x = 1,506.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.