Home / 2,861.30-3,945.47-2,484.95

Finding the Fourth Proportional to 2,861.30, 3,945.47 and 2,484.95

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Solution

The fourth proportional to 2,861.30, 3,945.47 and 2,484.95 is: 3,426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.30 : 3,945.47 = 2,484.95 : x
  2. Step 2: Convert to fraction form
    2,861.30/3,945.47 = 2,484.95/x
  3. Step 3: Cross multiply
    2,861.30x = 3,945.47 × 2,484.95
  4. Step 4: Simplify right side
    2,861.30x = 9,804,263.52
  5. Step 5: Solve for x
    x = 9,804,263.52/2,861.30
  6. Step 6: Final answer
    x = 3,426.51

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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.