Home / 5,207.62-7,186.51-2,938.81

Finding the Fourth Proportional to 5,207.62, 7,186.51 and 2,938.81

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Solution

The fourth proportional to 5,207.62, 7,186.51 and 2,938.81 is: 4,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.62 : 7,186.51 = 2,938.81 : x
  2. Step 2: Convert to fraction form
    5,207.62/7,186.51 = 2,938.81/x
  3. Step 3: Cross multiply
    5,207.62x = 7,186.51 × 2,938.81
  4. Step 4: Simplify right side
    5,207.62x = 21,119,787.45
  5. Step 5: Solve for x
    x = 21,119,787.45/5,207.62
  6. Step 6: Final answer
    x = 4,055.55

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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.