Home / 3,719.85-5,133.06-2,126.18

Finding the Fourth Proportional to 3,719.85, 5,133.06 and 2,126.18

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Solution

The fourth proportional to 3,719.85, 5,133.06 and 2,126.18 is: 2,933.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.85 : 5,133.06 = 2,126.18 : x
  2. Step 2: Convert to fraction form
    3,719.85/5,133.06 = 2,126.18/x
  3. Step 3: Cross multiply
    3,719.85x = 5,133.06 × 2,126.18
  4. Step 4: Simplify right side
    3,719.85x = 10,913,828.32
  5. Step 5: Solve for x
    x = 10,913,828.32/3,719.85
  6. Step 6: Final answer
    x = 2,933.94

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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.