Home / 2,574.38-3,861.58-1,808.30

Finding the Fourth Proportional to 2,574.38, 3,861.58 and 1,808.30

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Solution

The fourth proportional to 2,574.38, 3,861.58 and 1,808.30 is: 2,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,574.38 : 3,861.58 = 1,808.30 : x
  2. Step 2: Convert to fraction form
    2,574.38/3,861.58 = 1,808.30/x
  3. Step 3: Cross multiply
    2,574.38x = 3,861.58 × 1,808.30
  4. Step 4: Simplify right side
    2,574.38x = 6,982,895.11
  5. Step 5: Solve for x
    x = 6,982,895.11/2,574.38
  6. Step 6: Final answer
    x = 2,712.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.