Home / 3,427.86-4,730.28-1,915.16

Finding the Fourth Proportional to 3,427.86, 4,730.28 and 1,915.16

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Solution

The fourth proportional to 3,427.86, 4,730.28 and 1,915.16 is: 2,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.86 : 4,730.28 = 1,915.16 : x
  2. Step 2: Convert to fraction form
    3,427.86/4,730.28 = 1,915.16/x
  3. Step 3: Cross multiply
    3,427.86x = 4,730.28 × 1,915.16
  4. Step 4: Simplify right side
    3,427.86x = 9,059,212.21
  5. Step 5: Solve for x
    x = 9,059,212.21/3,427.86
  6. Step 6: Final answer
    x = 2,642.82

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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.