Home / 2,658.12-3,668.76-1,820.52

Finding the Fourth Proportional to 2,658.12, 3,668.76 and 1,820.52

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Solution

The fourth proportional to 2,658.12, 3,668.76 and 1,820.52 is: 2,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.12 : 3,668.76 = 1,820.52 : x
  2. Step 2: Convert to fraction form
    2,658.12/3,668.76 = 1,820.52/x
  3. Step 3: Cross multiply
    2,658.12x = 3,668.76 × 1,820.52
  4. Step 4: Simplify right side
    2,658.12x = 6,679,050.96
  5. Step 5: Solve for x
    x = 6,679,050.96/2,658.12
  6. Step 6: Final answer
    x = 2,512.70

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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.