Home / 6,971.58-9,619.34-3,988.41

Finding the Fourth Proportional to 6,971.58, 9,619.34 and 3,988.41

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Solution

The fourth proportional to 6,971.58, 9,619.34 and 3,988.41 is: 5,503.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.58 : 9,619.34 = 3,988.41 : x
  2. Step 2: Convert to fraction form
    6,971.58/9,619.34 = 3,988.41/x
  3. Step 3: Cross multiply
    6,971.58x = 9,619.34 × 3,988.41
  4. Step 4: Simplify right side
    6,971.58x = 38,365,851.91
  5. Step 5: Solve for x
    x = 38,365,851.91/6,971.58
  6. Step 6: Final answer
    x = 5,503.18

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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.