Home / 1,431.60-1,977.96-1,244.52

Finding the Fourth Proportional to 1,431.60, 1,977.96 and 1,244.52

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Solution

The fourth proportional to 1,431.60, 1,977.96 and 1,244.52 is: 1,719.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.60 : 1,977.96 = 1,244.52 : x
  2. Step 2: Convert to fraction form
    1,431.60/1,977.96 = 1,244.52/x
  3. Step 3: Cross multiply
    1,431.60x = 1,977.96 × 1,244.52
  4. Step 4: Simplify right side
    1,431.60x = 2,461,610.78
  5. Step 5: Solve for x
    x = 2,461,610.78/1,431.60
  6. Step 6: Final answer
    x = 1,719.48

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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.