Home / 1,266.50-1,899.38-400.52

Finding the Fourth Proportional to 1,266.50, 1,899.38 and 400.52

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Solution

The fourth proportional to 1,266.50, 1,899.38 and 400.52 is: 600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.50 : 1,899.38 = 400.52 : x
  2. Step 2: Convert to fraction form
    1,266.50/1,899.38 = 400.52/x
  3. Step 3: Cross multiply
    1,266.50x = 1,899.38 × 400.52
  4. Step 4: Simplify right side
    1,266.50x = 760,739.68
  5. Step 5: Solve for x
    x = 760,739.68/1,266.50
  6. Step 6: Final answer
    x = 600.66

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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.