Home / 1,110.20-1,530.15-736.51

Finding the Fourth Proportional to 1,110.20, 1,530.15 and 736.51

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Solution

The fourth proportional to 1,110.20, 1,530.15 and 736.51 is: 1,015.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.20 : 1,530.15 = 736.51 : x
  2. Step 2: Convert to fraction form
    1,110.20/1,530.15 = 736.51/x
  3. Step 3: Cross multiply
    1,110.20x = 1,530.15 × 736.51
  4. Step 4: Simplify right side
    1,110.20x = 1,126,966.95
  5. Step 5: Solve for x
    x = 1,126,966.95/1,110.20
  6. Step 6: Final answer
    x = 1,015.11

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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.