Home / 3,681.16-5,521.02-1,372.20

Finding the Fourth Proportional to 3,681.16, 5,521.02 and 1,372.20

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Solution

The fourth proportional to 3,681.16, 5,521.02 and 1,372.20 is: 2,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.16 : 5,521.02 = 1,372.20 : x
  2. Step 2: Convert to fraction form
    3,681.16/5,521.02 = 1,372.20/x
  3. Step 3: Cross multiply
    3,681.16x = 5,521.02 × 1,372.20
  4. Step 4: Simplify right side
    3,681.16x = 7,575,943.64
  5. Step 5: Solve for x
    x = 7,575,943.64/3,681.16
  6. Step 6: Final answer
    x = 2,058.03

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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.