Home / 7,270.38-10,032.90-4,286.40

Finding the Fourth Proportional to 7,270.38, 10,032.90 and 4,286.40

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Solution

The fourth proportional to 7,270.38, 10,032.90 and 4,286.40 is: 5,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,270.38 : 10,032.90 = 4,286.40 : x
  2. Step 2: Convert to fraction form
    7,270.38/10,032.90 = 4,286.40/x
  3. Step 3: Cross multiply
    7,270.38x = 10,032.90 × 4,286.40
  4. Step 4: Simplify right side
    7,270.38x = 43,005,022.56
  5. Step 5: Solve for x
    x = 43,005,022.56/7,270.38
  6. Step 6: Final answer
    x = 5,915.10

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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.