Home / 4,072.29-5,619.69-2,478.36

Finding the Fourth Proportional to 4,072.29, 5,619.69 and 2,478.36

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Solution

The fourth proportional to 4,072.29, 5,619.69 and 2,478.36 is: 3,420.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.29 : 5,619.69 = 2,478.36 : x
  2. Step 2: Convert to fraction form
    4,072.29/5,619.69 = 2,478.36/x
  3. Step 3: Cross multiply
    4,072.29x = 5,619.69 × 2,478.36
  4. Step 4: Simplify right side
    4,072.29x = 13,927,614.91
  5. Step 5: Solve for x
    x = 13,927,614.91/4,072.29
  6. Step 6: Final answer
    x = 3,420.09

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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.