Home / 2,269.40-3,132-1,385

Finding the Fourth Proportional to 2,269.40, 3,132 and 1,385

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Solution

The fourth proportional to 2,269.40, 3,132 and 1,385 is: 1,911.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.40 : 3,132 = 1,385 : x
  2. Step 2: Convert to fraction form
    2,269.40/3,132 = 1,385/x
  3. Step 3: Cross multiply
    2,269.40x = 3,132 × 1,385
  4. Step 4: Simplify right side
    2,269.40x = 4,337,820
  5. Step 5: Solve for x
    x = 4,337,820/2,269.40
  6. Step 6: Final answer
    x = 1,911.44

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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.