Home / 7,881.39-10,875.51-4,523.40

Finding the Fourth Proportional to 7,881.39, 10,875.51 and 4,523.40

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Solution

The fourth proportional to 7,881.39, 10,875.51 and 4,523.40 is: 6,241.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.39 : 10,875.51 = 4,523.40 : x
  2. Step 2: Convert to fraction form
    7,881.39/10,875.51 = 4,523.40/x
  3. Step 3: Cross multiply
    7,881.39x = 10,875.51 × 4,523.40
  4. Step 4: Simplify right side
    7,881.39x = 49,194,227.56
  5. Step 5: Solve for x
    x = 49,194,227.56/7,881.39
  6. Step 6: Final answer
    x = 6,241.83

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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.