Home / 1,374.60-1,899.36-1,082.20

Finding the Fourth Proportional to 1,374.60, 1,899.36 and 1,082.20

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Solution

The fourth proportional to 1,374.60, 1,899.36 and 1,082.20 is: 1,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.60 : 1,899.36 = 1,082.20 : x
  2. Step 2: Convert to fraction form
    1,374.60/1,899.36 = 1,082.20/x
  3. Step 3: Cross multiply
    1,374.60x = 1,899.36 × 1,082.20
  4. Step 4: Simplify right side
    1,374.60x = 2,055,487.39
  5. Step 5: Solve for x
    x = 2,055,487.39/1,374.60
  6. Step 6: Final answer
    x = 1,495.33

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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.