Home / 3,407.23-4,702.05-1,915.15

Finding the Fourth Proportional to 3,407.23, 4,702.05 and 1,915.15

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Solution

The fourth proportional to 3,407.23, 4,702.05 and 1,915.15 is: 2,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.23 : 4,702.05 = 1,915.15 : x
  2. Step 2: Convert to fraction form
    3,407.23/4,702.05 = 1,915.15/x
  3. Step 3: Cross multiply
    3,407.23x = 4,702.05 × 1,915.15
  4. Step 4: Simplify right side
    3,407.23x = 9,005,131.06
  5. Step 5: Solve for x
    x = 9,005,131.06/3,407.23
  6. Step 6: Final answer
    x = 2,642.95

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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.