Home / 5,209.25-7,187.34-2,970.31

Finding the Fourth Proportional to 5,209.25, 7,187.34 and 2,970.31

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Solution

The fourth proportional to 5,209.25, 7,187.34 and 2,970.31 is: 4,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.25 : 7,187.34 = 2,970.31 : x
  2. Step 2: Convert to fraction form
    5,209.25/7,187.34 = 2,970.31/x
  3. Step 3: Cross multiply
    5,209.25x = 7,187.34 × 2,970.31
  4. Step 4: Simplify right side
    5,209.25x = 21,348,609.91
  5. Step 5: Solve for x
    x = 21,348,609.91/5,209.25
  6. Step 6: Final answer
    x = 4,098.21

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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.