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Finding the Fourth Proportional to 7,490.58, 10,340.97 and 5,808.21

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Solution

The fourth proportional to 7,490.58, 10,340.97 and 5,808.21 is: 8,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.58 : 10,340.97 = 5,808.21 : x
  2. Step 2: Convert to fraction form
    7,490.58/10,340.97 = 5,808.21/x
  3. Step 3: Cross multiply
    7,490.58x = 10,340.97 × 5,808.21
  4. Step 4: Simplify right side
    7,490.58x = 60,062,525.36
  5. Step 5: Solve for x
    x = 60,062,525.36/7,490.58
  6. Step 6: Final answer
    x = 8,018.41

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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.