Home / 1,325.75-1,986.95-1,160.82

Finding the Fourth Proportional to 1,325.75, 1,986.95 and 1,160.82

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Solution

The fourth proportional to 1,325.75, 1,986.95 and 1,160.82 is: 1,739.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.75 : 1,986.95 = 1,160.82 : x
  2. Step 2: Convert to fraction form
    1,325.75/1,986.95 = 1,160.82/x
  3. Step 3: Cross multiply
    1,325.75x = 1,986.95 × 1,160.82
  4. Step 4: Simplify right side
    1,325.75x = 2,306,491.30
  5. Step 5: Solve for x
    x = 2,306,491.30/1,325.75
  6. Step 6: Final answer
    x = 1,739.76

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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.