Home / 5,329.78-7,358.52-3,442.21

Finding the Fourth Proportional to 5,329.78, 7,358.52 and 3,442.21

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Solution

The fourth proportional to 5,329.78, 7,358.52 and 3,442.21 is: 4,752.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.78 : 7,358.52 = 3,442.21 : x
  2. Step 2: Convert to fraction form
    5,329.78/7,358.52 = 3,442.21/x
  3. Step 3: Cross multiply
    5,329.78x = 7,358.52 × 3,442.21
  4. Step 4: Simplify right side
    5,329.78x = 25,329,571.13
  5. Step 5: Solve for x
    x = 25,329,571.13/5,329.78
  6. Step 6: Final answer
    x = 4,752.46

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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.