Home / 2,790.28-4,186.98-2,427.64

Finding the Fourth Proportional to 2,790.28, 4,186.98 and 2,427.64

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Solution

The fourth proportional to 2,790.28, 4,186.98 and 2,427.64 is: 3,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.28 : 4,186.98 = 2,427.64 : x
  2. Step 2: Convert to fraction form
    2,790.28/4,186.98 = 2,427.64/x
  3. Step 3: Cross multiply
    2,790.28x = 4,186.98 × 2,427.64
  4. Step 4: Simplify right side
    2,790.28x = 10,164,480.13
  5. Step 5: Solve for x
    x = 10,164,480.13/2,790.28
  6. Step 6: Final answer
    x = 3,642.82

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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.