Home / 7,717.36-10,649.90-4,180.50

Finding the Fourth Proportional to 7,717.36, 10,649.90 and 4,180.50

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Solution

The fourth proportional to 7,717.36, 10,649.90 and 4,180.50 is: 5,769.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.36 : 10,649.90 = 4,180.50 : x
  2. Step 2: Convert to fraction form
    7,717.36/10,649.90 = 4,180.50/x
  3. Step 3: Cross multiply
    7,717.36x = 10,649.90 × 4,180.50
  4. Step 4: Simplify right side
    7,717.36x = 44,521,906.95
  5. Step 5: Solve for x
    x = 44,521,906.95/7,717.36
  6. Step 6: Final answer
    x = 5,769.06

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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.