Home / 1,747.20-2,615.40-1,434

Finding the Fourth Proportional to 1,747.20, 2,615.40 and 1,434

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Solution

The fourth proportional to 1,747.20, 2,615.40 and 1,434 is: 2,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.20 : 2,615.40 = 1,434 : x
  2. Step 2: Convert to fraction form
    1,747.20/2,615.40 = 1,434/x
  3. Step 3: Cross multiply
    1,747.20x = 2,615.40 × 1,434
  4. Step 4: Simplify right side
    1,747.20x = 3,750,483.60
  5. Step 5: Solve for x
    x = 3,750,483.60/1,747.20
  6. Step 6: Final answer
    x = 2,146.57

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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.