Home / 1,353.48-2,029.01-1,123.85

Finding the Fourth Proportional to 1,353.48, 2,029.01 and 1,123.85

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Solution

The fourth proportional to 1,353.48, 2,029.01 and 1,123.85 is: 1,684.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.48 : 2,029.01 = 1,123.85 : x
  2. Step 2: Convert to fraction form
    1,353.48/2,029.01 = 1,123.85/x
  3. Step 3: Cross multiply
    1,353.48x = 2,029.01 × 1,123.85
  4. Step 4: Simplify right side
    1,353.48x = 2,280,287.12
  5. Step 5: Solve for x
    x = 2,280,287.12/1,353.48
  6. Step 6: Final answer
    x = 1,684.76

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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.