Home / 3,071.64-4,237.65-1,890.66

Finding the Fourth Proportional to 3,071.64, 4,237.65 and 1,890.66

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Solution

The fourth proportional to 3,071.64, 4,237.65 and 1,890.66 is: 2,608.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.64 : 4,237.65 = 1,890.66 : x
  2. Step 2: Convert to fraction form
    3,071.64/4,237.65 = 1,890.66/x
  3. Step 3: Cross multiply
    3,071.64x = 4,237.65 × 1,890.66
  4. Step 4: Simplify right side
    3,071.64x = 8,011,934.16
  5. Step 5: Solve for x
    x = 8,011,934.16/3,071.64
  6. Step 6: Final answer
    x = 2,608.36

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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.