Home / 2,658.18-3,668.10-1,479.20

Finding the Fourth Proportional to 2,658.18, 3,668.10 and 1,479.20

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Solution

The fourth proportional to 2,658.18, 3,668.10 and 1,479.20 is: 2,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.18 : 3,668.10 = 1,479.20 : x
  2. Step 2: Convert to fraction form
    2,658.18/3,668.10 = 1,479.20/x
  3. Step 3: Cross multiply
    2,658.18x = 3,668.10 × 1,479.20
  4. Step 4: Simplify right side
    2,658.18x = 5,425,853.52
  5. Step 5: Solve for x
    x = 5,425,853.52/2,658.18
  6. Step 6: Final answer
    x = 2,041.19

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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.