Home / 7,390.28-10,207.46-5,397.64

Finding the Fourth Proportional to 7,390.28, 10,207.46 and 5,397.64

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Solution

The fourth proportional to 7,390.28, 10,207.46 and 5,397.64 is: 7,455.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.28 : 10,207.46 = 5,397.64 : x
  2. Step 2: Convert to fraction form
    7,390.28/10,207.46 = 5,397.64/x
  3. Step 3: Cross multiply
    7,390.28x = 10,207.46 × 5,397.64
  4. Step 4: Simplify right side
    7,390.28x = 55,096,194.39
  5. Step 5: Solve for x
    x = 55,096,194.39/7,390.28
  6. Step 6: Final answer
    x = 7,455.22

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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.