Home / 2,246.80-3,390.28-2,156.88

Finding the Fourth Proportional to 2,246.80, 3,390.28 and 2,156.88

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Solution

The fourth proportional to 2,246.80, 3,390.28 and 2,156.88 is: 3,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,246.80 : 3,390.28 = 2,156.88 : x
  2. Step 2: Convert to fraction form
    2,246.80/3,390.28 = 2,156.88/x
  3. Step 3: Cross multiply
    2,246.80x = 3,390.28 × 2,156.88
  4. Step 4: Simplify right side
    2,246.80x = 7,312,427.13
  5. Step 5: Solve for x
    x = 7,312,427.13/2,246.80
  6. Step 6: Final answer
    x = 3,254.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.