Home / 2,156.16-3,212.42-2,126.08

Finding the Fourth Proportional to 2,156.16, 3,212.42 and 2,126.08

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Solution

The fourth proportional to 2,156.16, 3,212.42 and 2,126.08 is: 3,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.16 : 3,212.42 = 2,126.08 : x
  2. Step 2: Convert to fraction form
    2,156.16/3,212.42 = 2,126.08/x
  3. Step 3: Cross multiply
    2,156.16x = 3,212.42 × 2,126.08
  4. Step 4: Simplify right side
    2,156.16x = 6,829,861.91
  5. Step 5: Solve for x
    x = 6,829,861.91/2,156.16
  6. Step 6: Final answer
    x = 3,167.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.