Home / 3,502.30-5,253.48-1,421.68

Finding the Fourth Proportional to 3,502.30, 5,253.48 and 1,421.68

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Solution

The fourth proportional to 3,502.30, 5,253.48 and 1,421.68 is: 2,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,502.30 : 5,253.48 = 1,421.68 : x
  2. Step 2: Convert to fraction form
    3,502.30/5,253.48 = 1,421.68/x
  3. Step 3: Cross multiply
    3,502.30x = 5,253.48 × 1,421.68
  4. Step 4: Simplify right side
    3,502.30x = 7,468,767.45
  5. Step 5: Solve for x
    x = 7,468,767.45/3,502.30
  6. Step 6: Final answer
    x = 2,132.53

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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.