Home / 5,281.58-7,280.81-4,020.44

Finding the Fourth Proportional to 5,281.58, 7,280.81 and 4,020.44

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Solution

The fourth proportional to 5,281.58, 7,280.81 and 4,020.44 is: 5,542.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.58 : 7,280.81 = 4,020.44 : x
  2. Step 2: Convert to fraction form
    5,281.58/7,280.81 = 4,020.44/x
  3. Step 3: Cross multiply
    5,281.58x = 7,280.81 × 4,020.44
  4. Step 4: Simplify right side
    5,281.58x = 29,272,023.35
  5. Step 5: Solve for x
    x = 29,272,023.35/5,281.58
  6. Step 6: Final answer
    x = 5,542.29

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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.