Home / 6,428.76-8,872.51-3,596.29

Finding the Fourth Proportional to 6,428.76, 8,872.51 and 3,596.29

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Solution

The fourth proportional to 6,428.76, 8,872.51 and 3,596.29 is: 4,963.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.76 : 8,872.51 = 3,596.29 : x
  2. Step 2: Convert to fraction form
    6,428.76/8,872.51 = 3,596.29/x
  3. Step 3: Cross multiply
    6,428.76x = 8,872.51 × 3,596.29
  4. Step 4: Simplify right side
    6,428.76x = 31,908,078.83
  5. Step 5: Solve for x
    x = 31,908,078.83/6,428.76
  6. Step 6: Final answer
    x = 4,963.34

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Half scale
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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.