Home / 4,789.64-6,612.90-3,220.52

Finding the Fourth Proportional to 4,789.64, 6,612.90 and 3,220.52

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Solution

The fourth proportional to 4,789.64, 6,612.90 and 3,220.52 is: 4,446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.64 : 6,612.90 = 3,220.52 : x
  2. Step 2: Convert to fraction form
    4,789.64/6,612.90 = 3,220.52/x
  3. Step 3: Cross multiply
    4,789.64x = 6,612.90 × 3,220.52
  4. Step 4: Simplify right side
    4,789.64x = 21,296,976.71
  5. Step 5: Solve for x
    x = 21,296,976.71/4,789.64
  6. Step 6: Final answer
    x = 4,446.47

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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.