Home / 7,161.26-9,890.04-4,928.90

Finding the Fourth Proportional to 7,161.26, 9,890.04 and 4,928.90

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Solution

The fourth proportional to 7,161.26, 9,890.04 and 4,928.90 is: 6,807.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.26 : 9,890.04 = 4,928.90 : x
  2. Step 2: Convert to fraction form
    7,161.26/9,890.04 = 4,928.90/x
  3. Step 3: Cross multiply
    7,161.26x = 9,890.04 × 4,928.90
  4. Step 4: Simplify right side
    7,161.26x = 48,747,018.16
  5. Step 5: Solve for x
    x = 48,747,018.16/7,161.26
  6. Step 6: Final answer
    x = 6,807.04

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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.