Home / 3,407.53-4,702.43-1,915.36

Finding the Fourth Proportional to 3,407.53, 4,702.43 and 1,915.36

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Solution

The fourth proportional to 3,407.53, 4,702.43 and 1,915.36 is: 2,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.53 : 4,702.43 = 1,915.36 : x
  2. Step 2: Convert to fraction form
    3,407.53/4,702.43 = 1,915.36/x
  3. Step 3: Cross multiply
    3,407.53x = 4,702.43 × 1,915.36
  4. Step 4: Simplify right side
    3,407.53x = 9,006,846.32
  5. Step 5: Solve for x
    x = 9,006,846.32/3,407.53
  6. Step 6: Final answer
    x = 2,643.22

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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.