Home / 3,649.55-5,470.68-1,308.92

Finding the Fourth Proportional to 3,649.55, 5,470.68 and 1,308.92

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Solution

The fourth proportional to 3,649.55, 5,470.68 and 1,308.92 is: 1,962.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.55 : 5,470.68 = 1,308.92 : x
  2. Step 2: Convert to fraction form
    3,649.55/5,470.68 = 1,308.92/x
  3. Step 3: Cross multiply
    3,649.55x = 5,470.68 × 1,308.92
  4. Step 4: Simplify right side
    3,649.55x = 7,160,682.47
  5. Step 5: Solve for x
    x = 7,160,682.47/3,649.55
  6. Step 6: Final answer
    x = 1,962.07

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1.5x scale

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.