Home / 4,890.08-6,747.36-3,120.32

Finding the Fourth Proportional to 4,890.08, 6,747.36 and 3,120.32

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Solution

The fourth proportional to 4,890.08, 6,747.36 and 3,120.32 is: 4,305.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.08 : 6,747.36 = 3,120.32 : x
  2. Step 2: Convert to fraction form
    4,890.08/6,747.36 = 3,120.32/x
  3. Step 3: Cross multiply
    4,890.08x = 6,747.36 × 3,120.32
  4. Step 4: Simplify right side
    4,890.08x = 21,053,922.36
  5. Step 5: Solve for x
    x = 21,053,922.36/4,890.08
  6. Step 6: Final answer
    x = 4,305.44

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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.