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Finding the Fourth Proportional to 7,077.49, 10,616.18 and 1,812.49

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Solution

The fourth proportional to 7,077.49, 10,616.18 and 1,812.49 is: 2,718.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.49 : 10,616.18 = 1,812.49 : x
  2. Step 2: Convert to fraction form
    7,077.49/10,616.18 = 1,812.49/x
  3. Step 3: Cross multiply
    7,077.49x = 10,616.18 × 1,812.49
  4. Step 4: Simplify right side
    7,077.49x = 19,241,720.09
  5. Step 5: Solve for x
    x = 19,241,720.09/7,077.49
  6. Step 6: Final answer
    x = 2,718.72

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1.5x scale

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.