Home / 2,721.48-3,756.31-1,543.24

Finding the Fourth Proportional to 2,721.48, 3,756.31 and 1,543.24

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Solution

The fourth proportional to 2,721.48, 3,756.31 and 1,543.24 is: 2,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.48 : 3,756.31 = 1,543.24 : x
  2. Step 2: Convert to fraction form
    2,721.48/3,756.31 = 1,543.24/x
  3. Step 3: Cross multiply
    2,721.48x = 3,756.31 × 1,543.24
  4. Step 4: Simplify right side
    2,721.48x = 5,796,887.84
  5. Step 5: Solve for x
    x = 5,796,887.84/2,721.48
  6. Step 6: Final answer
    x = 2,130.05

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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.