Home / 5,345.11-7,376.26-2,987.25

Finding the Fourth Proportional to 5,345.11, 7,376.26 and 2,987.25

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Solution

The fourth proportional to 5,345.11, 7,376.26 and 2,987.25 is: 4,122.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.11 : 7,376.26 = 2,987.25 : x
  2. Step 2: Convert to fraction form
    5,345.11/7,376.26 = 2,987.25/x
  3. Step 3: Cross multiply
    5,345.11x = 7,376.26 × 2,987.25
  4. Step 4: Simplify right side
    5,345.11x = 22,034,697.56
  5. Step 5: Solve for x
    x = 22,034,697.56/5,345.11
  6. Step 6: Final answer
    x = 4,122.41

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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.