Home / 6,919.54-9,548.30-3,935.20

Finding the Fourth Proportional to 6,919.54, 9,548.30 and 3,935.20

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Solution

The fourth proportional to 6,919.54, 9,548.30 and 3,935.20 is: 5,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.54 : 9,548.30 = 3,935.20 : x
  2. Step 2: Convert to fraction form
    6,919.54/9,548.30 = 3,935.20/x
  3. Step 3: Cross multiply
    6,919.54x = 9,548.30 × 3,935.20
  4. Step 4: Simplify right side
    6,919.54x = 37,574,470.16
  5. Step 5: Solve for x
    x = 37,574,470.16/6,919.54
  6. Step 6: Final answer
    x = 5,430.20

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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.