Home / 3,681.26-5,082.02-2,840.07

Finding the Fourth Proportional to 3,681.26, 5,082.02 and 2,840.07

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Solution

The fourth proportional to 3,681.26, 5,082.02 and 2,840.07 is: 3,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.26 : 5,082.02 = 2,840.07 : x
  2. Step 2: Convert to fraction form
    3,681.26/5,082.02 = 2,840.07/x
  3. Step 3: Cross multiply
    3,681.26x = 5,082.02 × 2,840.07
  4. Step 4: Simplify right side
    3,681.26x = 14,433,278.34
  5. Step 5: Solve for x
    x = 14,433,278.34/3,681.26
  6. Step 6: Final answer
    x = 3,920.75

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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.