Home / 3,613.12-5,417.76-1,663.63

Finding the Fourth Proportional to 3,613.12, 5,417.76 and 1,663.63

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Solution

The fourth proportional to 3,613.12, 5,417.76 and 1,663.63 is: 2,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.12 : 5,417.76 = 1,663.63 : x
  2. Step 2: Convert to fraction form
    3,613.12/5,417.76 = 1,663.63/x
  3. Step 3: Cross multiply
    3,613.12x = 5,417.76 × 1,663.63
  4. Step 4: Simplify right side
    3,613.12x = 9,013,148.07
  5. Step 5: Solve for x
    x = 9,013,148.07/3,613.12
  6. Step 6: Final answer
    x = 2,494.56

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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.