Home / 4,302.16-6,440.28-3,148.72

Finding the Fourth Proportional to 4,302.16, 6,440.28 and 3,148.72

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Solution

The fourth proportional to 4,302.16, 6,440.28 and 3,148.72 is: 4,713.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,302.16 : 6,440.28 = 3,148.72 : x
  2. Step 2: Convert to fraction form
    4,302.16/6,440.28 = 3,148.72/x
  3. Step 3: Cross multiply
    4,302.16x = 6,440.28 × 3,148.72
  4. Step 4: Simplify right side
    4,302.16x = 20,278,638.44
  5. Step 5: Solve for x
    x = 20,278,638.44/4,302.16
  6. Step 6: Final answer
    x = 4,713.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.