Home / 5,385.78-7,433.58-3,291.12

Finding the Fourth Proportional to 5,385.78, 7,433.58 and 3,291.12

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Solution

The fourth proportional to 5,385.78, 7,433.58 and 3,291.12 is: 4,542.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.78 : 7,433.58 = 3,291.12 : x
  2. Step 2: Convert to fraction form
    5,385.78/7,433.58 = 3,291.12/x
  3. Step 3: Cross multiply
    5,385.78x = 7,433.58 × 3,291.12
  4. Step 4: Simplify right side
    5,385.78x = 24,464,803.81
  5. Step 5: Solve for x
    x = 24,464,803.81/5,385.78
  6. Step 6: Final answer
    x = 4,542.48

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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.