Home / 2,156.12-2,972.31-1,524.68

Finding the Fourth Proportional to 2,156.12, 2,972.31 and 1,524.68

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Solution

The fourth proportional to 2,156.12, 2,972.31 and 1,524.68 is: 2,101.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.12 : 2,972.31 = 1,524.68 : x
  2. Step 2: Convert to fraction form
    2,156.12/2,972.31 = 1,524.68/x
  3. Step 3: Cross multiply
    2,156.12x = 2,972.31 × 1,524.68
  4. Step 4: Simplify right side
    2,156.12x = 4,531,821.61
  5. Step 5: Solve for x
    x = 4,531,821.61/2,156.12
  6. Step 6: Final answer
    x = 2,101.84

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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.