Home / 2,874.08-3,966.59-1,754.78

Finding the Fourth Proportional to 2,874.08, 3,966.59 and 1,754.78

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Solution

The fourth proportional to 2,874.08, 3,966.59 and 1,754.78 is: 2,421.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.08 : 3,966.59 = 1,754.78 : x
  2. Step 2: Convert to fraction form
    2,874.08/3,966.59 = 1,754.78/x
  3. Step 3: Cross multiply
    2,874.08x = 3,966.59 × 1,754.78
  4. Step 4: Simplify right side
    2,874.08x = 6,960,492.80
  5. Step 5: Solve for x
    x = 6,960,492.80/2,874.08
  6. Step 6: Final answer
    x = 2,421.82

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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.