Home / 2,391.42-3,301.21-1,861.76

Finding the Fourth Proportional to 2,391.42, 3,301.21 and 1,861.76

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Solution

The fourth proportional to 2,391.42, 3,301.21 and 1,861.76 is: 2,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.42 : 3,301.21 = 1,861.76 : x
  2. Step 2: Convert to fraction form
    2,391.42/3,301.21 = 1,861.76/x
  3. Step 3: Cross multiply
    2,391.42x = 3,301.21 × 1,861.76
  4. Step 4: Simplify right side
    2,391.42x = 6,146,060.73
  5. Step 5: Solve for x
    x = 6,146,060.73/2,391.42
  6. Step 6: Final answer
    x = 2,570.05

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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.