Home / 5,127.69-7,691.55-1,618.03

Finding the Fourth Proportional to 5,127.69, 7,691.55 and 1,618.03

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Solution

The fourth proportional to 5,127.69, 7,691.55 and 1,618.03 is: 2,427.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.69 : 7,691.55 = 1,618.03 : x
  2. Step 2: Convert to fraction form
    5,127.69/7,691.55 = 1,618.03/x
  3. Step 3: Cross multiply
    5,127.69x = 7,691.55 × 1,618.03
  4. Step 4: Simplify right side
    5,127.69x = 12,445,158.65
  5. Step 5: Solve for x
    x = 12,445,158.65/5,127.69
  6. Step 6: Final answer
    x = 2,427.05

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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.