Home / 2,658.31-3,666.89-1,818.59

Finding the Fourth Proportional to 2,658.31, 3,666.89 and 1,818.59

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Solution

The fourth proportional to 2,658.31, 3,666.89 and 1,818.59 is: 2,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.31 : 3,666.89 = 1,818.59 : x
  2. Step 2: Convert to fraction form
    2,658.31/3,666.89 = 1,818.59/x
  3. Step 3: Cross multiply
    2,658.31x = 3,666.89 × 1,818.59
  4. Step 4: Simplify right side
    2,658.31x = 6,668,555.70
  5. Step 5: Solve for x
    x = 6,668,555.70/2,658.31
  6. Step 6: Final answer
    x = 2,508.57

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1.5x scale

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.