Home / 2,124.98-2,932.70-1,286.15

Finding the Fourth Proportional to 2,124.98, 2,932.70 and 1,286.15

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Solution

The fourth proportional to 2,124.98, 2,932.70 and 1,286.15 is: 1,775.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.98 : 2,932.70 = 1,286.15 : x
  2. Step 2: Convert to fraction form
    2,124.98/2,932.70 = 1,286.15/x
  3. Step 3: Cross multiply
    2,124.98x = 2,932.70 × 1,286.15
  4. Step 4: Simplify right side
    2,124.98x = 3,771,892.11
  5. Step 5: Solve for x
    x = 3,771,892.11/2,124.98
  6. Step 6: Final answer
    x = 1,775.02

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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.