Home / 6,688.85-9,231.66-4,036.64

Finding the Fourth Proportional to 6,688.85, 9,231.66 and 4,036.64

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Solution

The fourth proportional to 6,688.85, 9,231.66 and 4,036.64 is: 5,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.85 : 9,231.66 = 4,036.64 : x
  2. Step 2: Convert to fraction form
    6,688.85/9,231.66 = 4,036.64/x
  3. Step 3: Cross multiply
    6,688.85x = 9,231.66 × 4,036.64
  4. Step 4: Simplify right side
    6,688.85x = 37,264,841.86
  5. Step 5: Solve for x
    x = 37,264,841.86/6,688.85
  6. Step 6: Final answer
    x = 5,571.19

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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.