Home / 7,442.88-11,156.43-3,490.80

Finding the Fourth Proportional to 7,442.88, 11,156.43 and 3,490.80

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Solution

The fourth proportional to 7,442.88, 11,156.43 and 3,490.80 is: 5,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.88 : 11,156.43 = 3,490.80 : x
  2. Step 2: Convert to fraction form
    7,442.88/11,156.43 = 3,490.80/x
  3. Step 3: Cross multiply
    7,442.88x = 11,156.43 × 3,490.80
  4. Step 4: Simplify right side
    7,442.88x = 38,944,865.84
  5. Step 5: Solve for x
    x = 38,944,865.84/7,442.88
  6. Step 6: Final answer
    x = 5,232.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.