Home / 2,909.31-4,010.73-2,069.70

Finding the Fourth Proportional to 2,909.31, 4,010.73 and 2,069.70

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Solution

The fourth proportional to 2,909.31, 4,010.73 and 2,069.70 is: 2,853.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.31 : 4,010.73 = 2,069.70 : x
  2. Step 2: Convert to fraction form
    2,909.31/4,010.73 = 2,069.70/x
  3. Step 3: Cross multiply
    2,909.31x = 4,010.73 × 2,069.70
  4. Step 4: Simplify right side
    2,909.31x = 8,301,007.88
  5. Step 5: Solve for x
    x = 8,301,007.88/2,909.31
  6. Step 6: Final answer
    x = 2,853.26

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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.