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Finding the Fourth Proportional to 7,449, 10,279.02 and 4,305.40

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Solution

The fourth proportional to 7,449, 10,279.02 and 4,305.40 is: 5,941.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449 : 10,279.02 = 4,305.40 : x
  2. Step 2: Convert to fraction form
    7,449/10,279.02 = 4,305.40/x
  3. Step 3: Cross multiply
    7,449x = 10,279.02 × 4,305.40
  4. Step 4: Simplify right side
    7,449x = 44,255,292.71
  5. Step 5: Solve for x
    x = 44,255,292.71/7,449
  6. Step 6: Final answer
    x = 5,941.11

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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.