Home / 6,407.52-9,616.32-3,287.40

Finding the Fourth Proportional to 6,407.52, 9,616.32 and 3,287.40

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Solution

The fourth proportional to 6,407.52, 9,616.32 and 3,287.40 is: 4,933.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,407.52 : 9,616.32 = 3,287.40 : x
  2. Step 2: Convert to fraction form
    6,407.52/9,616.32 = 3,287.40/x
  3. Step 3: Cross multiply
    6,407.52x = 9,616.32 × 3,287.40
  4. Step 4: Simplify right side
    6,407.52x = 31,612,690.37
  5. Step 5: Solve for x
    x = 31,612,690.37/6,407.52
  6. Step 6: Final answer
    x = 4,933.69

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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.