Home / 2,119.12-2,924.60-1,187.62

Finding the Fourth Proportional to 2,119.12, 2,924.60 and 1,187.62

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Solution

The fourth proportional to 2,119.12, 2,924.60 and 1,187.62 is: 1,639.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.12 : 2,924.60 = 1,187.62 : x
  2. Step 2: Convert to fraction form
    2,119.12/2,924.60 = 1,187.62/x
  3. Step 3: Cross multiply
    2,119.12x = 2,924.60 × 1,187.62
  4. Step 4: Simplify right side
    2,119.12x = 3,473,313.45
  5. Step 5: Solve for x
    x = 3,473,313.45/2,119.12
  6. Step 6: Final answer
    x = 1,639.04

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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.