Home / 3,681.19-5,077.10-2,972.84

Finding the Fourth Proportional to 3,681.19, 5,077.10 and 2,972.84

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Solution

The fourth proportional to 3,681.19, 5,077.10 and 2,972.84 is: 4,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.19 : 5,077.10 = 2,972.84 : x
  2. Step 2: Convert to fraction form
    3,681.19/5,077.10 = 2,972.84/x
  3. Step 3: Cross multiply
    3,681.19x = 5,077.10 × 2,972.84
  4. Step 4: Simplify right side
    3,681.19x = 15,093,391.10
  5. Step 5: Solve for x
    x = 15,093,391.10/3,681.19
  6. Step 6: Final answer
    x = 4,100.14

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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.