Home / 2,722.35-3,756.54-1,543.17

Finding the Fourth Proportional to 2,722.35, 3,756.54 and 1,543.17

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Solution

The fourth proportional to 2,722.35, 3,756.54 and 1,543.17 is: 2,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.35 : 3,756.54 = 1,543.17 : x
  2. Step 2: Convert to fraction form
    2,722.35/3,756.54 = 1,543.17/x
  3. Step 3: Cross multiply
    2,722.35x = 3,756.54 × 1,543.17
  4. Step 4: Simplify right side
    2,722.35x = 5,796,979.83
  5. Step 5: Solve for x
    x = 5,796,979.83/2,722.35
  6. Step 6: Final answer
    x = 2,129.40

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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.