Home / 7,864.20-10,850.40-4,880.16

Finding the Fourth Proportional to 7,864.20, 10,850.40 and 4,880.16

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Solution

The fourth proportional to 7,864.20, 10,850.40 and 4,880.16 is: 6,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.20 : 10,850.40 = 4,880.16 : x
  2. Step 2: Convert to fraction form
    7,864.20/10,850.40 = 4,880.16/x
  3. Step 3: Cross multiply
    7,864.20x = 10,850.40 × 4,880.16
  4. Step 4: Simplify right side
    7,864.20x = 52,951,688.06
  5. Step 5: Solve for x
    x = 52,951,688.06/7,864.20
  6. Step 6: Final answer
    x = 6,733.26

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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.