Home / 7,153.06-10,721.28-2,707.90

Finding the Fourth Proportional to 7,153.06, 10,721.28 and 2,707.90

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Solution

The fourth proportional to 7,153.06, 10,721.28 and 2,707.90 is: 4,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.06 : 10,721.28 = 2,707.90 : x
  2. Step 2: Convert to fraction form
    7,153.06/10,721.28 = 2,707.90/x
  3. Step 3: Cross multiply
    7,153.06x = 10,721.28 × 2,707.90
  4. Step 4: Simplify right side
    7,153.06x = 29,032,154.11
  5. Step 5: Solve for x
    x = 29,032,154.11/7,153.06
  6. Step 6: Final answer
    x = 4,058.70

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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.