Home / 6,389.38-9,586.45-2,878.34

Finding the Fourth Proportional to 6,389.38, 9,586.45 and 2,878.34

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Solution

The fourth proportional to 6,389.38, 9,586.45 and 2,878.34 is: 4,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.38 : 9,586.45 = 2,878.34 : x
  2. Step 2: Convert to fraction form
    6,389.38/9,586.45 = 2,878.34/x
  3. Step 3: Cross multiply
    6,389.38x = 9,586.45 × 2,878.34
  4. Step 4: Simplify right side
    6,389.38x = 27,593,018.16
  5. Step 5: Solve for x
    x = 27,593,018.16/6,389.38
  6. Step 6: Final answer
    x = 4,318.57

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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.