Home / 7,717.12-10,649.58-4,180.33

Finding the Fourth Proportional to 7,717.12, 10,649.58 and 4,180.33

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Solution

The fourth proportional to 7,717.12, 10,649.58 and 4,180.33 is: 5,768.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.12 : 10,649.58 = 4,180.33 : x
  2. Step 2: Convert to fraction form
    7,717.12/10,649.58 = 4,180.33/x
  3. Step 3: Cross multiply
    7,717.12x = 10,649.58 × 4,180.33
  4. Step 4: Simplify right side
    7,717.12x = 44,518,795.84
  5. Step 5: Solve for x
    x = 44,518,795.84/7,717.12
  6. Step 6: Final answer
    x = 5,768.84

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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.