Home / 4,908.40-6,772.84-2,918.92

Finding the Fourth Proportional to 4,908.40, 6,772.84 and 2,918.92

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Solution

The fourth proportional to 4,908.40, 6,772.84 and 2,918.92 is: 4,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.40 : 6,772.84 = 2,918.92 : x
  2. Step 2: Convert to fraction form
    4,908.40/6,772.84 = 2,918.92/x
  3. Step 3: Cross multiply
    4,908.40x = 6,772.84 × 2,918.92
  4. Step 4: Simplify right side
    4,908.40x = 19,769,378.13
  5. Step 5: Solve for x
    x = 19,769,378.13/4,908.40
  6. Step 6: Final answer
    x = 4,027.66

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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.