Home / 2,658.09-3,666.45-2,098.38

Finding the Fourth Proportional to 2,658.09, 3,666.45 and 2,098.38

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Solution

The fourth proportional to 2,658.09, 3,666.45 and 2,098.38 is: 2,894.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.09 : 3,666.45 = 2,098.38 : x
  2. Step 2: Convert to fraction form
    2,658.09/3,666.45 = 2,098.38/x
  3. Step 3: Cross multiply
    2,658.09x = 3,666.45 × 2,098.38
  4. Step 4: Simplify right side
    2,658.09x = 7,693,605.35
  5. Step 5: Solve for x
    x = 7,693,605.35/2,658.09
  6. Step 6: Final answer
    x = 2,894.41

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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.