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Finding the Fourth Proportional to 6,590.10, 9,873.15 and 3,119.70

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Solution

The fourth proportional to 6,590.10, 9,873.15 and 3,119.70 is: 4,673.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,590.10 : 9,873.15 = 3,119.70 : x
  2. Step 2: Convert to fraction form
    6,590.10/9,873.15 = 3,119.70/x
  3. Step 3: Cross multiply
    6,590.10x = 9,873.15 × 3,119.70
  4. Step 4: Simplify right side
    6,590.10x = 30,801,266.06
  5. Step 5: Solve for x
    x = 30,801,266.06/6,590.10
  6. Step 6: Final answer
    x = 4,673.87

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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.