Home / 5,678.15-8,508.55-2,389.44

Finding the Fourth Proportional to 5,678.15, 8,508.55 and 2,389.44

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Solution

The fourth proportional to 5,678.15, 8,508.55 and 2,389.44 is: 3,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.15 : 8,508.55 = 2,389.44 : x
  2. Step 2: Convert to fraction form
    5,678.15/8,508.55 = 2,389.44/x
  3. Step 3: Cross multiply
    5,678.15x = 8,508.55 × 2,389.44
  4. Step 4: Simplify right side
    5,678.15x = 20,330,669.71
  5. Step 5: Solve for x
    x = 20,330,669.71/5,678.15
  6. Step 6: Final answer
    x = 3,580.51

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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.