Home / 3,074.02-4,238.78-2,077.57

Finding the Fourth Proportional to 3,074.02, 4,238.78 and 2,077.57

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Solution

The fourth proportional to 3,074.02, 4,238.78 and 2,077.57 is: 2,864.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.02 : 4,238.78 = 2,077.57 : x
  2. Step 2: Convert to fraction form
    3,074.02/4,238.78 = 2,077.57/x
  3. Step 3: Cross multiply
    3,074.02x = 4,238.78 × 2,077.57
  4. Step 4: Simplify right side
    3,074.02x = 8,806,340.97
  5. Step 5: Solve for x
    x = 8,806,340.97/3,074.02
  6. Step 6: Final answer
    x = 2,864.77

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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.