Home / 5,115.12-7,669.53-4,680.03

Finding the Fourth Proportional to 5,115.12, 7,669.53 and 4,680.03

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Solution

The fourth proportional to 5,115.12, 7,669.53 and 4,680.03 is: 7,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.12 : 7,669.53 = 4,680.03 : x
  2. Step 2: Convert to fraction form
    5,115.12/7,669.53 = 4,680.03/x
  3. Step 3: Cross multiply
    5,115.12x = 7,669.53 × 4,680.03
  4. Step 4: Simplify right side
    5,115.12x = 35,893,630.49
  5. Step 5: Solve for x
    x = 35,893,630.49/5,115.12
  6. Step 6: Final answer
    x = 7,017.16

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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.