Home / 2,921.54-4,359.95-2,609.89

Finding the Fourth Proportional to 2,921.54, 4,359.95 and 2,609.89

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Solution

The fourth proportional to 2,921.54, 4,359.95 and 2,609.89 is: 3,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.54 : 4,359.95 = 2,609.89 : x
  2. Step 2: Convert to fraction form
    2,921.54/4,359.95 = 2,609.89/x
  3. Step 3: Cross multiply
    2,921.54x = 4,359.95 × 2,609.89
  4. Step 4: Simplify right side
    2,921.54x = 11,378,980.12
  5. Step 5: Solve for x
    x = 11,378,980.12/2,921.54
  6. Step 6: Final answer
    x = 3,894.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.