Home / 1,265.76-1,895.87-1,043.89

Finding the Fourth Proportional to 1,265.76, 1,895.87 and 1,043.89

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Solution

The fourth proportional to 1,265.76, 1,895.87 and 1,043.89 is: 1,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.76 : 1,895.87 = 1,043.89 : x
  2. Step 2: Convert to fraction form
    1,265.76/1,895.87 = 1,043.89/x
  3. Step 3: Cross multiply
    1,265.76x = 1,895.87 × 1,043.89
  4. Step 4: Simplify right side
    1,265.76x = 1,979,073.20
  5. Step 5: Solve for x
    x = 1,979,073.20/1,265.76
  6. Step 6: Final answer
    x = 1,563.54

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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.