Home / 6,718.49-9,270.81-3,885.41

Finding the Fourth Proportional to 6,718.49, 9,270.81 and 3,885.41

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Solution

The fourth proportional to 6,718.49, 9,270.81 and 3,885.41 is: 5,361.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.49 : 9,270.81 = 3,885.41 : x
  2. Step 2: Convert to fraction form
    6,718.49/9,270.81 = 3,885.41/x
  3. Step 3: Cross multiply
    6,718.49x = 9,270.81 × 3,885.41
  4. Step 4: Simplify right side
    6,718.49x = 36,020,897.88
  5. Step 5: Solve for x
    x = 36,020,897.88/6,718.49
  6. Step 6: Final answer
    x = 5,361.46

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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.