Home / 6,723.90-9,278.01-4,071.60

Finding the Fourth Proportional to 6,723.90, 9,278.01 and 4,071.60

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Solution

The fourth proportional to 6,723.90, 9,278.01 and 4,071.60 is: 5,618.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,723.90 : 9,278.01 = 4,071.60 : x
  2. Step 2: Convert to fraction form
    6,723.90/9,278.01 = 4,071.60/x
  3. Step 3: Cross multiply
    6,723.90x = 9,278.01 × 4,071.60
  4. Step 4: Simplify right side
    6,723.90x = 37,776,345.52
  5. Step 5: Solve for x
    x = 37,776,345.52/6,723.90
  6. Step 6: Final answer
    x = 5,618.22

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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.