Home / 3,320.63-4,579.51-2,620.79

Finding the Fourth Proportional to 3,320.63, 4,579.51 and 2,620.79

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Solution

The fourth proportional to 3,320.63, 4,579.51 and 2,620.79 is: 3,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.63 : 4,579.51 = 2,620.79 : x
  2. Step 2: Convert to fraction form
    3,320.63/4,579.51 = 2,620.79/x
  3. Step 3: Cross multiply
    3,320.63x = 4,579.51 × 2,620.79
  4. Step 4: Simplify right side
    3,320.63x = 12,001,934.01
  5. Step 5: Solve for x
    x = 12,001,934.01/3,320.63
  6. Step 6: Final answer
    x = 3,614.35

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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.