Home / 7,217.12-10,830.16-4,621.92

Finding the Fourth Proportional to 7,217.12, 10,830.16 and 4,621.92

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Solution

The fourth proportional to 7,217.12, 10,830.16 and 4,621.92 is: 6,935.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.12 : 10,830.16 = 4,621.92 : x
  2. Step 2: Convert to fraction form
    7,217.12/10,830.16 = 4,621.92/x
  3. Step 3: Cross multiply
    7,217.12x = 10,830.16 × 4,621.92
  4. Step 4: Simplify right side
    7,217.12x = 50,056,133.11
  5. Step 5: Solve for x
    x = 50,056,133.11/7,217.12
  6. Step 6: Final answer
    x = 6,935.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.