Home / 5,590.92-8,389.62-5,290.68

Finding the Fourth Proportional to 5,590.92, 8,389.62 and 5,290.68

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Solution

The fourth proportional to 5,590.92, 8,389.62 and 5,290.68 is: 7,939.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.92 : 8,389.62 = 5,290.68 : x
  2. Step 2: Convert to fraction form
    5,590.92/8,389.62 = 5,290.68/x
  3. Step 3: Cross multiply
    5,590.92x = 8,389.62 × 5,290.68
  4. Step 4: Simplify right side
    5,590.92x = 44,386,794.74
  5. Step 5: Solve for x
    x = 44,386,794.74/5,590.92
  6. Step 6: Final answer
    x = 7,939.09

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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.