Home / 1,630.30-2,439.84-1,266.74

Finding the Fourth Proportional to 1,630.30, 2,439.84 and 1,266.74

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Solution

The fourth proportional to 1,630.30, 2,439.84 and 1,266.74 is: 1,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.30 : 2,439.84 = 1,266.74 : x
  2. Step 2: Convert to fraction form
    1,630.30/2,439.84 = 1,266.74/x
  3. Step 3: Cross multiply
    1,630.30x = 2,439.84 × 1,266.74
  4. Step 4: Simplify right side
    1,630.30x = 3,090,642.92
  5. Step 5: Solve for x
    x = 3,090,642.92/1,630.30
  6. Step 6: Final answer
    x = 1,895.76

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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.