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Finding the Fourth Proportional to 4,849.86, 7,275.78 and 1,888.20

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Solution

The fourth proportional to 4,849.86, 7,275.78 and 1,888.20 is: 2,832.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,849.86 : 7,275.78 = 1,888.20 : x
  2. Step 2: Convert to fraction form
    4,849.86/7,275.78 = 1,888.20/x
  3. Step 3: Cross multiply
    4,849.86x = 7,275.78 × 1,888.20
  4. Step 4: Simplify right side
    4,849.86x = 13,738,127.80
  5. Step 5: Solve for x
    x = 13,738,127.80/4,849.86
  6. Step 6: Final answer
    x = 2,832.69

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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.