Home / 2,910.60-4,016.28-1,651.20

Finding the Fourth Proportional to 2,910.60, 4,016.28 and 1,651.20

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Solution

The fourth proportional to 2,910.60, 4,016.28 and 1,651.20 is: 2,278.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.60 : 4,016.28 = 1,651.20 : x
  2. Step 2: Convert to fraction form
    2,910.60/4,016.28 = 1,651.20/x
  3. Step 3: Cross multiply
    2,910.60x = 4,016.28 × 1,651.20
  4. Step 4: Simplify right side
    2,910.60x = 6,631,681.54
  5. Step 5: Solve for x
    x = 6,631,681.54/2,910.60
  6. Step 6: Final answer
    x = 2,278.46

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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.