Home / 7,449.21-10,279.89-4,307.22

Finding the Fourth Proportional to 7,449.21, 10,279.89 and 4,307.22

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Solution

The fourth proportional to 7,449.21, 10,279.89 and 4,307.22 is: 5,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.21 : 10,279.89 = 4,307.22 : x
  2. Step 2: Convert to fraction form
    7,449.21/10,279.89 = 4,307.22/x
  3. Step 3: Cross multiply
    7,449.21x = 10,279.89 × 4,307.22
  4. Step 4: Simplify right side
    7,449.21x = 44,277,747.81
  5. Step 5: Solve for x
    x = 44,277,747.81/7,449.21
  6. Step 6: Final answer
    x = 5,943.95

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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.