Home / 3,915.02-5,403.77-2,422.08

Finding the Fourth Proportional to 3,915.02, 5,403.77 and 2,422.08

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Solution

The fourth proportional to 3,915.02, 5,403.77 and 2,422.08 is: 3,343.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.02 : 5,403.77 = 2,422.08 : x
  2. Step 2: Convert to fraction form
    3,915.02/5,403.77 = 2,422.08/x
  3. Step 3: Cross multiply
    3,915.02x = 5,403.77 × 2,422.08
  4. Step 4: Simplify right side
    3,915.02x = 13,088,351.13
  5. Step 5: Solve for x
    x = 13,088,351.13/3,915.02
  6. Step 6: Final answer
    x = 3,343.12

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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.