Home / 1,743.15-2,615.10-510.45

Finding the Fourth Proportional to 1,743.15, 2,615.10 and 510.45

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Solution

The fourth proportional to 1,743.15, 2,615.10 and 510.45 is: 765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.15 : 2,615.10 = 510.45 : x
  2. Step 2: Convert to fraction form
    1,743.15/2,615.10 = 510.45/x
  3. Step 3: Cross multiply
    1,743.15x = 2,615.10 × 510.45
  4. Step 4: Simplify right side
    1,743.15x = 1,334,877.80
  5. Step 5: Solve for x
    x = 1,334,877.80/1,743.15
  6. Step 6: Final answer
    x = 765.78

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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.