Home / 1,262.04-1,743.30-1,028.76

Finding the Fourth Proportional to 1,262.04, 1,743.30 and 1,028.76

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Solution

The fourth proportional to 1,262.04, 1,743.30 and 1,028.76 is: 1,421.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.04 : 1,743.30 = 1,028.76 : x
  2. Step 2: Convert to fraction form
    1,262.04/1,743.30 = 1,028.76/x
  3. Step 3: Cross multiply
    1,262.04x = 1,743.30 × 1,028.76
  4. Step 4: Simplify right side
    1,262.04x = 1,793,437.31
  5. Step 5: Solve for x
    x = 1,793,437.31/1,262.04
  6. Step 6: Final answer
    x = 1,421.06

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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.