Home / 5,357.90-7,394.67-3,000.20

Finding the Fourth Proportional to 5,357.90, 7,394.67 and 3,000.20

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Solution

The fourth proportional to 5,357.90, 7,394.67 and 3,000.20 is: 4,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357.90 : 7,394.67 = 3,000.20 : x
  2. Step 2: Convert to fraction form
    5,357.90/7,394.67 = 3,000.20/x
  3. Step 3: Cross multiply
    5,357.90x = 7,394.67 × 3,000.20
  4. Step 4: Simplify right side
    5,357.90x = 22,185,451.96
  5. Step 5: Solve for x
    x = 22,185,451.96/5,357.90
  6. Step 6: Final answer
    x = 4,140.70

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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.