Home / 7,161.90-9,883.28-4,018.08

Finding the Fourth Proportional to 7,161.90, 9,883.28 and 4,018.08

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Solution

The fourth proportional to 7,161.90, 9,883.28 and 4,018.08 is: 5,544.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.90 : 9,883.28 = 4,018.08 : x
  2. Step 2: Convert to fraction form
    7,161.90/9,883.28 = 4,018.08/x
  3. Step 3: Cross multiply
    7,161.90x = 9,883.28 × 4,018.08
  4. Step 4: Simplify right side
    7,161.90x = 39,711,809.70
  5. Step 5: Solve for x
    x = 39,711,809.70/7,161.90
  6. Step 6: Final answer
    x = 5,544.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.