Home / 3,071.71-4,238.89-1,876.29

Finding the Fourth Proportional to 3,071.71, 4,238.89 and 1,876.29

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Solution

The fourth proportional to 3,071.71, 4,238.89 and 1,876.29 is: 2,589.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.71 : 4,238.89 = 1,876.29 : x
  2. Step 2: Convert to fraction form
    3,071.71/4,238.89 = 1,876.29/x
  3. Step 3: Cross multiply
    3,071.71x = 4,238.89 × 1,876.29
  4. Step 4: Simplify right side
    3,071.71x = 7,953,386.92
  5. Step 5: Solve for x
    x = 7,953,386.92/3,071.71
  6. Step 6: Final answer
    x = 2,589.24

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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.