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Finding the Fourth Proportional to 6,614.19, 9,921.29 and 2,718.63

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Solution

The fourth proportional to 6,614.19, 9,921.29 and 2,718.63 is: 4,077.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,614.19 : 9,921.29 = 2,718.63 : x
  2. Step 2: Convert to fraction form
    6,614.19/9,921.29 = 2,718.63/x
  3. Step 3: Cross multiply
    6,614.19x = 9,921.29 × 2,718.63
  4. Step 4: Simplify right side
    6,614.19x = 26,972,303.04
  5. Step 5: Solve for x
    x = 26,972,303.04/6,614.19
  6. Step 6: Final answer
    x = 4,077.95

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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.