Home / 7,275.16-10,912.79-3,325.60

Finding the Fourth Proportional to 7,275.16, 10,912.79 and 3,325.60

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Solution

The fourth proportional to 7,275.16, 10,912.79 and 3,325.60 is: 4,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.16 : 10,912.79 = 3,325.60 : x
  2. Step 2: Convert to fraction form
    7,275.16/10,912.79 = 3,325.60/x
  3. Step 3: Cross multiply
    7,275.16x = 10,912.79 × 3,325.60
  4. Step 4: Simplify right side
    7,275.16x = 36,291,574.42
  5. Step 5: Solve for x
    x = 36,291,574.42/7,275.16
  6. Step 6: Final answer
    x = 4,988.42

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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.