Home / 7,743.84-10,686.39-4,207.07

Finding the Fourth Proportional to 7,743.84, 10,686.39 and 4,207.07

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Solution

The fourth proportional to 7,743.84, 10,686.39 and 4,207.07 is: 5,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.84 : 10,686.39 = 4,207.07 : x
  2. Step 2: Convert to fraction form
    7,743.84/10,686.39 = 4,207.07/x
  3. Step 3: Cross multiply
    7,743.84x = 10,686.39 × 4,207.07
  4. Step 4: Simplify right side
    7,743.84x = 44,958,390.78
  5. Step 5: Solve for x
    x = 44,958,390.78/7,743.84
  6. Step 6: Final answer
    x = 5,805.70

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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.