Home / 3,090.80-4,613.72-2,862.38

Finding the Fourth Proportional to 3,090.80, 4,613.72 and 2,862.38

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Solution

The fourth proportional to 3,090.80, 4,613.72 and 2,862.38 is: 4,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.80 : 4,613.72 = 2,862.38 : x
  2. Step 2: Convert to fraction form
    3,090.80/4,613.72 = 2,862.38/x
  3. Step 3: Cross multiply
    3,090.80x = 4,613.72 × 2,862.38
  4. Step 4: Simplify right side
    3,090.80x = 13,206,199.77
  5. Step 5: Solve for x
    x = 13,206,199.77/3,090.80
  6. Step 6: Final answer
    x = 4,272.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.