Home / 5,389.45-8,085.08-2,758.10

Finding the Fourth Proportional to 5,389.45, 8,085.08 and 2,758.10

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Solution

The fourth proportional to 5,389.45, 8,085.08 and 2,758.10 is: 4,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.45 : 8,085.08 = 2,758.10 : x
  2. Step 2: Convert to fraction form
    5,389.45/8,085.08 = 2,758.10/x
  3. Step 3: Cross multiply
    5,389.45x = 8,085.08 × 2,758.10
  4. Step 4: Simplify right side
    5,389.45x = 22,299,425.62
  5. Step 5: Solve for x
    x = 22,299,425.62/5,389.45
  6. Step 6: Final answer
    x = 4,137.61

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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.