Home / 5,618.94-8,432.10-2,156.18

Finding the Fourth Proportional to 5,618.94, 8,432.10 and 2,156.18

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Solution

The fourth proportional to 5,618.94, 8,432.10 and 2,156.18 is: 3,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.94 : 8,432.10 = 2,156.18 : x
  2. Step 2: Convert to fraction form
    5,618.94/8,432.10 = 2,156.18/x
  3. Step 3: Cross multiply
    5,618.94x = 8,432.10 × 2,156.18
  4. Step 4: Simplify right side
    5,618.94x = 18,181,125.38
  5. Step 5: Solve for x
    x = 18,181,125.38/5,618.94
  6. Step 6: Final answer
    x = 3,235.69

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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.