Home / 2,712.45-4,066.65-1,151.19

Finding the Fourth Proportional to 2,712.45, 4,066.65 and 1,151.19

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Solution

The fourth proportional to 2,712.45, 4,066.65 and 1,151.19 is: 1,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.45 : 4,066.65 = 1,151.19 : x
  2. Step 2: Convert to fraction form
    2,712.45/4,066.65 = 1,151.19/x
  3. Step 3: Cross multiply
    2,712.45x = 4,066.65 × 1,151.19
  4. Step 4: Simplify right side
    2,712.45x = 4,681,486.81
  5. Step 5: Solve for x
    x = 4,681,486.81/2,712.45
  6. Step 6: Final answer
    x = 1,725.93

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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.