Home / 7,880.25-10,874.79-4,343.40

Finding the Fourth Proportional to 7,880.25, 10,874.79 and 4,343.40

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Solution

The fourth proportional to 7,880.25, 10,874.79 and 4,343.40 is: 5,993.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.25 : 10,874.79 = 4,343.40 : x
  2. Step 2: Convert to fraction form
    7,880.25/10,874.79 = 4,343.40/x
  3. Step 3: Cross multiply
    7,880.25x = 10,874.79 × 4,343.40
  4. Step 4: Simplify right side
    7,880.25x = 47,233,562.89
  5. Step 5: Solve for x
    x = 47,233,562.89/7,880.25
  6. Step 6: Final answer
    x = 5,993.92

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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.