Home / 2,119.60-2,921.04-1,529.08

Finding the Fourth Proportional to 2,119.60, 2,921.04 and 1,529.08

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Solution

The fourth proportional to 2,119.60, 2,921.04 and 1,529.08 is: 2,107.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.60 : 2,921.04 = 1,529.08 : x
  2. Step 2: Convert to fraction form
    2,119.60/2,921.04 = 1,529.08/x
  3. Step 3: Cross multiply
    2,119.60x = 2,921.04 × 1,529.08
  4. Step 4: Simplify right side
    2,119.60x = 4,466,503.84
  5. Step 5: Solve for x
    x = 4,466,503.84/2,119.60
  6. Step 6: Final answer
    x = 2,107.24

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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.