Home / 2,721.12-3,754.32-1,541.76

Finding the Fourth Proportional to 2,721.12, 3,754.32 and 1,541.76

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Solution

The fourth proportional to 2,721.12, 3,754.32 and 1,541.76 is: 2,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.12 : 3,754.32 = 1,541.76 : x
  2. Step 2: Convert to fraction form
    2,721.12/3,754.32 = 1,541.76/x
  3. Step 3: Cross multiply
    2,721.12x = 3,754.32 × 1,541.76
  4. Step 4: Simplify right side
    2,721.12x = 5,788,260.40
  5. Step 5: Solve for x
    x = 5,788,260.40/2,721.12
  6. Step 6: Final answer
    x = 2,127.16

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1.5x scale

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.