Home / 3,810.20-5,715.70-1,619.16

Finding the Fourth Proportional to 3,810.20, 5,715.70 and 1,619.16

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Solution

The fourth proportional to 3,810.20, 5,715.70 and 1,619.16 is: 2,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.20 : 5,715.70 = 1,619.16 : x
  2. Step 2: Convert to fraction form
    3,810.20/5,715.70 = 1,619.16/x
  3. Step 3: Cross multiply
    3,810.20x = 5,715.70 × 1,619.16
  4. Step 4: Simplify right side
    3,810.20x = 9,254,632.81
  5. Step 5: Solve for x
    x = 9,254,632.81/3,810.20
  6. Step 6: Final answer
    x = 2,428.91

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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.