Home / 3,613.02-4,988.37-2,218.18

Finding the Fourth Proportional to 3,613.02, 4,988.37 and 2,218.18

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Solution

The fourth proportional to 3,613.02, 4,988.37 and 2,218.18 is: 3,062.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.02 : 4,988.37 = 2,218.18 : x
  2. Step 2: Convert to fraction form
    3,613.02/4,988.37 = 2,218.18/x
  3. Step 3: Cross multiply
    3,613.02x = 4,988.37 × 2,218.18
  4. Step 4: Simplify right side
    3,613.02x = 11,065,102.57
  5. Step 5: Solve for x
    x = 11,065,102.57/3,613.02
  6. Step 6: Final answer
    x = 3,062.56

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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.