Home / 1,658.96-2,488.58-1,080.62

Finding the Fourth Proportional to 1,658.96, 2,488.58 and 1,080.62

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Solution

The fourth proportional to 1,658.96, 2,488.58 and 1,080.62 is: 1,621.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.96 : 2,488.58 = 1,080.62 : x
  2. Step 2: Convert to fraction form
    1,658.96/2,488.58 = 1,080.62/x
  3. Step 3: Cross multiply
    1,658.96x = 2,488.58 × 1,080.62
  4. Step 4: Simplify right side
    1,658.96x = 2,689,209.32
  5. Step 5: Solve for x
    x = 2,689,209.32/1,658.96
  6. Step 6: Final answer
    x = 1,621.02

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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.