Home / 5,190.91-7,749.40-5,008.66

Finding the Fourth Proportional to 5,190.91, 7,749.40 and 5,008.66

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Solution

The fourth proportional to 5,190.91, 7,749.40 and 5,008.66 is: 7,477.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.91 : 7,749.40 = 5,008.66 : x
  2. Step 2: Convert to fraction form
    5,190.91/7,749.40 = 5,008.66/x
  3. Step 3: Cross multiply
    5,190.91x = 7,749.40 × 5,008.66
  4. Step 4: Simplify right side
    5,190.91x = 38,814,084.76
  5. Step 5: Solve for x
    x = 38,814,084.76/5,190.91
  6. Step 6: Final answer
    x = 7,477.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.