Home / 4,487.67-6,178.80-4,072.45

Finding the Fourth Proportional to 4,487.67, 6,178.80 and 4,072.45

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Solution

The fourth proportional to 4,487.67, 6,178.80 and 4,072.45 is: 5,607.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,487.67 : 6,178.80 = 4,072.45 : x
  2. Step 2: Convert to fraction form
    4,487.67/6,178.80 = 4,072.45/x
  3. Step 3: Cross multiply
    4,487.67x = 6,178.80 × 4,072.45
  4. Step 4: Simplify right side
    4,487.67x = 25,162,854.06
  5. Step 5: Solve for x
    x = 25,162,854.06/4,487.67
  6. Step 6: Final answer
    x = 5,607.11

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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.