Home / 2,945.28-4,064.40-1,618.95

Finding the Fourth Proportional to 2,945.28, 4,064.40 and 1,618.95

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Solution

The fourth proportional to 2,945.28, 4,064.40 and 1,618.95 is: 2,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.28 : 4,064.40 = 1,618.95 : x
  2. Step 2: Convert to fraction form
    2,945.28/4,064.40 = 1,618.95/x
  3. Step 3: Cross multiply
    2,945.28x = 4,064.40 × 1,618.95
  4. Step 4: Simplify right side
    2,945.28x = 6,580,060.38
  5. Step 5: Solve for x
    x = 6,580,060.38/2,945.28
  6. Step 6: Final answer
    x = 2,234.10

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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.