Home / 1,677.60-2,514.96-581.40

Finding the Fourth Proportional to 1,677.60, 2,514.96 and 581.40

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Solution

The fourth proportional to 1,677.60, 2,514.96 and 581.40 is: 871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.60 : 2,514.96 = 581.40 : x
  2. Step 2: Convert to fraction form
    1,677.60/2,514.96 = 581.40/x
  3. Step 3: Cross multiply
    1,677.60x = 2,514.96 × 581.40
  4. Step 4: Simplify right side
    1,677.60x = 1,462,197.74
  5. Step 5: Solve for x
    x = 1,462,197.74/1,677.60
  6. Step 6: Final answer
    x = 871.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.