Home / 5,281.95-7,289.82-4,021.23

Finding the Fourth Proportional to 5,281.95, 7,289.82 and 4,021.23

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Solution

The fourth proportional to 5,281.95, 7,289.82 and 4,021.23 is: 5,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.95 : 7,289.82 = 4,021.23 : x
  2. Step 2: Convert to fraction form
    5,281.95/7,289.82 = 4,021.23/x
  3. Step 3: Cross multiply
    5,281.95x = 7,289.82 × 4,021.23
  4. Step 4: Simplify right side
    5,281.95x = 29,314,042.88
  5. Step 5: Solve for x
    x = 29,314,042.88/5,281.95
  6. Step 6: Final answer
    x = 5,549.85

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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.