Home / 7,161.90-9,883.40-4,018.02

Finding the Fourth Proportional to 7,161.90, 9,883.40 and 4,018.02

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Solution

The fourth proportional to 7,161.90, 9,883.40 and 4,018.02 is: 5,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.90 : 9,883.40 = 4,018.02 : x
  2. Step 2: Convert to fraction form
    7,161.90/9,883.40 = 4,018.02/x
  3. Step 3: Cross multiply
    7,161.90x = 9,883.40 × 4,018.02
  4. Step 4: Simplify right side
    7,161.90x = 39,711,678.78
  5. Step 5: Solve for x
    x = 39,711,678.78/7,161.90
  6. Step 6: Final answer
    x = 5,544.85

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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.