Home / 5,281.24-7,289.76-3,290.62

Finding the Fourth Proportional to 5,281.24, 7,289.76 and 3,290.62

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Solution

The fourth proportional to 5,281.24, 7,289.76 and 3,290.62 is: 4,542.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.24 : 7,289.76 = 3,290.62 : x
  2. Step 2: Convert to fraction form
    5,281.24/7,289.76 = 3,290.62/x
  3. Step 3: Cross multiply
    5,281.24x = 7,289.76 × 3,290.62
  4. Step 4: Simplify right side
    5,281.24x = 23,987,830.05
  5. Step 5: Solve for x
    x = 23,987,830.05/5,281.24
  6. Step 6: Final answer
    x = 4,542.08

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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.