Home / 1,972.36-2,721.86-1,088.16

Finding the Fourth Proportional to 1,972.36, 2,721.86 and 1,088.16

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Solution

The fourth proportional to 1,972.36, 2,721.86 and 1,088.16 is: 1,501.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.36 : 2,721.86 = 1,088.16 : x
  2. Step 2: Convert to fraction form
    1,972.36/2,721.86 = 1,088.16/x
  3. Step 3: Cross multiply
    1,972.36x = 2,721.86 × 1,088.16
  4. Step 4: Simplify right side
    1,972.36x = 2,961,819.18
  5. Step 5: Solve for x
    x = 2,961,819.18/1,972.36
  6. Step 6: Final answer
    x = 1,501.66

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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.