Home / 2,378.11-3,560.78-1,937.55

Finding the Fourth Proportional to 2,378.11, 3,560.78 and 1,937.55

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Solution

The fourth proportional to 2,378.11, 3,560.78 and 1,937.55 is: 2,901.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.11 : 3,560.78 = 1,937.55 : x
  2. Step 2: Convert to fraction form
    2,378.11/3,560.78 = 1,937.55/x
  3. Step 3: Cross multiply
    2,378.11x = 3,560.78 × 1,937.55
  4. Step 4: Simplify right side
    2,378.11x = 6,899,196.59
  5. Step 5: Solve for x
    x = 6,899,196.59/2,378.11
  6. Step 6: Final answer
    x = 2,901.13

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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.