Home / 6,487.72-9,726.78-2,589.16

Finding the Fourth Proportional to 6,487.72, 9,726.78 and 2,589.16

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Solution

The fourth proportional to 6,487.72, 9,726.78 and 2,589.16 is: 3,881.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.72 : 9,726.78 = 2,589.16 : x
  2. Step 2: Convert to fraction form
    6,487.72/9,726.78 = 2,589.16/x
  3. Step 3: Cross multiply
    6,487.72x = 9,726.78 × 2,589.16
  4. Step 4: Simplify right side
    6,487.72x = 25,184,189.70
  5. Step 5: Solve for x
    x = 25,184,189.70/6,487.72
  6. Step 6: Final answer
    x = 3,881.82

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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.