Home / 3,347.60-4,618.94-2,021.40

Finding the Fourth Proportional to 3,347.60, 4,618.94 and 2,021.40

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Solution

The fourth proportional to 3,347.60, 4,618.94 and 2,021.40 is: 2,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.60 : 4,618.94 = 2,021.40 : x
  2. Step 2: Convert to fraction form
    3,347.60/4,618.94 = 2,021.40/x
  3. Step 3: Cross multiply
    3,347.60x = 4,618.94 × 2,021.40
  4. Step 4: Simplify right side
    3,347.60x = 9,336,715.21
  5. Step 5: Solve for x
    x = 9,336,715.21/3,347.60
  6. Step 6: Final answer
    x = 2,789.08

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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.