Home / 2,156.12-3,234.18-1,569.68

Finding the Fourth Proportional to 2,156.12, 3,234.18 and 1,569.68

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Solution

The fourth proportional to 2,156.12, 3,234.18 and 1,569.68 is: 2,354.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.12 : 3,234.18 = 1,569.68 : x
  2. Step 2: Convert to fraction form
    2,156.12/3,234.18 = 1,569.68/x
  3. Step 3: Cross multiply
    2,156.12x = 3,234.18 × 1,569.68
  4. Step 4: Simplify right side
    2,156.12x = 5,076,627.66
  5. Step 5: Solve for x
    x = 5,076,627.66/2,156.12
  6. Step 6: Final answer
    x = 2,354.52

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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.