Home / 3,968.18-5,476.23-2,290.16

Finding the Fourth Proportional to 3,968.18, 5,476.23 and 2,290.16

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Solution

The fourth proportional to 3,968.18, 5,476.23 and 2,290.16 is: 3,160.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.18 : 5,476.23 = 2,290.16 : x
  2. Step 2: Convert to fraction form
    3,968.18/5,476.23 = 2,290.16/x
  3. Step 3: Cross multiply
    3,968.18x = 5,476.23 × 2,290.16
  4. Step 4: Simplify right side
    3,968.18x = 12,541,442.90
  5. Step 5: Solve for x
    x = 12,541,442.90/3,968.18
  6. Step 6: Final answer
    x = 3,160.50

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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.