Home / 6,919.06-9,549.86-4,399.20

Finding the Fourth Proportional to 6,919.06, 9,549.86 and 4,399.20

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Solution

The fourth proportional to 6,919.06, 9,549.86 and 4,399.20 is: 6,071.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.06 : 9,549.86 = 4,399.20 : x
  2. Step 2: Convert to fraction form
    6,919.06/9,549.86 = 4,399.20/x
  3. Step 3: Cross multiply
    6,919.06x = 9,549.86 × 4,399.20
  4. Step 4: Simplify right side
    6,919.06x = 42,011,744.11
  5. Step 5: Solve for x
    x = 42,011,744.11/6,919.06
  6. Step 6: Final answer
    x = 6,071.89

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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.