Home / 3,810.06-5,715.18-2,154.78

Finding the Fourth Proportional to 3,810.06, 5,715.18 and 2,154.78

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Solution

The fourth proportional to 3,810.06, 5,715.18 and 2,154.78 is: 3,232.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.06 : 5,715.18 = 2,154.78 : x
  2. Step 2: Convert to fraction form
    3,810.06/5,715.18 = 2,154.78/x
  3. Step 3: Cross multiply
    3,810.06x = 5,715.18 × 2,154.78
  4. Step 4: Simplify right side
    3,810.06x = 12,314,955.56
  5. Step 5: Solve for x
    x = 12,314,955.56/3,810.06
  6. Step 6: Final answer
    x = 3,232.22

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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.