Home / 7,189.08-9,920.91-4,045.27

Finding the Fourth Proportional to 7,189.08, 9,920.91 and 4,045.27

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Solution

The fourth proportional to 7,189.08, 9,920.91 and 4,045.27 is: 5,582.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.08 : 9,920.91 = 4,045.27 : x
  2. Step 2: Convert to fraction form
    7,189.08/9,920.91 = 4,045.27/x
  3. Step 3: Cross multiply
    7,189.08x = 9,920.91 × 4,045.27
  4. Step 4: Simplify right side
    7,189.08x = 40,132,759.60
  5. Step 5: Solve for x
    x = 40,132,759.60/7,189.08
  6. Step 6: Final answer
    x = 5,582.46

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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.