Home / 5,118.08-7,681.67-2,654.60

Finding the Fourth Proportional to 5,118.08, 7,681.67 and 2,654.60

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Solution

The fourth proportional to 5,118.08, 7,681.67 and 2,654.60 is: 3,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.08 : 7,681.67 = 2,654.60 : x
  2. Step 2: Convert to fraction form
    5,118.08/7,681.67 = 2,654.60/x
  3. Step 3: Cross multiply
    5,118.08x = 7,681.67 × 2,654.60
  4. Step 4: Simplify right side
    5,118.08x = 20,391,709.50
  5. Step 5: Solve for x
    x = 20,391,709.50/5,118.08
  6. Step 6: Final answer
    x = 3,984.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.