Home / 6,842.48-9,441.39-3,970.15

Finding the Fourth Proportional to 6,842.48, 9,441.39 and 3,970.15

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Solution

The fourth proportional to 6,842.48, 9,441.39 and 3,970.15 is: 5,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,842.48 : 9,441.39 = 3,970.15 : x
  2. Step 2: Convert to fraction form
    6,842.48/9,441.39 = 3,970.15/x
  3. Step 3: Cross multiply
    6,842.48x = 9,441.39 × 3,970.15
  4. Step 4: Simplify right side
    6,842.48x = 37,483,725.79
  5. Step 5: Solve for x
    x = 37,483,725.79/6,842.48
  6. Step 6: Final answer
    x = 5,478.09

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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.