Home / 6,345.90-9,521.28-2,647.08

Finding the Fourth Proportional to 6,345.90, 9,521.28 and 2,647.08

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Solution

The fourth proportional to 6,345.90, 9,521.28 and 2,647.08 is: 3,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.90 : 9,521.28 = 2,647.08 : x
  2. Step 2: Convert to fraction form
    6,345.90/9,521.28 = 2,647.08/x
  3. Step 3: Cross multiply
    6,345.90x = 9,521.28 × 2,647.08
  4. Step 4: Simplify right side
    6,345.90x = 25,203,589.86
  5. Step 5: Solve for x
    x = 25,203,589.86/6,345.90
  6. Step 6: Final answer
    x = 3,971.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.