Home / 5,390.33-7,438.46-3,000.22

Finding the Fourth Proportional to 5,390.33, 7,438.46 and 3,000.22

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Solution

The fourth proportional to 5,390.33, 7,438.46 and 3,000.22 is: 4,140.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.33 : 7,438.46 = 3,000.22 : x
  2. Step 2: Convert to fraction form
    5,390.33/7,438.46 = 3,000.22/x
  3. Step 3: Cross multiply
    5,390.33x = 7,438.46 × 3,000.22
  4. Step 4: Simplify right side
    5,390.33x = 22,316,982.86
  5. Step 5: Solve for x
    x = 22,316,982.86/5,390.33
  6. Step 6: Final answer
    x = 4,140.19

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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.