Home / 3,070.84-4,239.31-1,812.27

Finding the Fourth Proportional to 3,070.84, 4,239.31 and 1,812.27

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Solution

The fourth proportional to 3,070.84, 4,239.31 and 1,812.27 is: 2,501.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.84 : 4,239.31 = 1,812.27 : x
  2. Step 2: Convert to fraction form
    3,070.84/4,239.31 = 1,812.27/x
  3. Step 3: Cross multiply
    3,070.84x = 4,239.31 × 1,812.27
  4. Step 4: Simplify right side
    3,070.84x = 7,682,794.20
  5. Step 5: Solve for x
    x = 7,682,794.20/3,070.84
  6. Step 6: Final answer
    x = 2,501.86

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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.