Home / 6,608.16-9,118.64-3,955.12

Finding the Fourth Proportional to 6,608.16, 9,118.64 and 3,955.12

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Solution

The fourth proportional to 6,608.16, 9,118.64 and 3,955.12 is: 5,457.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.16 : 9,118.64 = 3,955.12 : x
  2. Step 2: Convert to fraction form
    6,608.16/9,118.64 = 3,955.12/x
  3. Step 3: Cross multiply
    6,608.16x = 9,118.64 × 3,955.12
  4. Step 4: Simplify right side
    6,608.16x = 36,065,315.44
  5. Step 5: Solve for x
    x = 36,065,315.44/6,608.16
  6. Step 6: Final answer
    x = 5,457.69

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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.