Home / 2,119.29-3,178.41-1,501.19

Finding the Fourth Proportional to 2,119.29, 3,178.41 and 1,501.19

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Solution

The fourth proportional to 2,119.29, 3,178.41 and 1,501.19 is: 2,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.29 : 3,178.41 = 1,501.19 : x
  2. Step 2: Convert to fraction form
    2,119.29/3,178.41 = 1,501.19/x
  3. Step 3: Cross multiply
    2,119.29x = 3,178.41 × 1,501.19
  4. Step 4: Simplify right side
    2,119.29x = 4,771,381.42
  5. Step 5: Solve for x
    x = 4,771,381.42/2,119.29
  6. Step 6: Final answer
    x = 2,251.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.