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Finding the Fourth Proportional to 4,849.77, 7,278.28 and 1,888.68

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Solution

The fourth proportional to 4,849.77, 7,278.28 and 1,888.68 is: 2,834.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,849.77 : 7,278.28 = 1,888.68 : x
  2. Step 2: Convert to fraction form
    4,849.77/7,278.28 = 1,888.68/x
  3. Step 3: Cross multiply
    4,849.77x = 7,278.28 × 1,888.68
  4. Step 4: Simplify right side
    4,849.77x = 13,746,341.87
  5. Step 5: Solve for x
    x = 13,746,341.87/4,849.77
  6. Step 6: Final answer
    x = 2,834.43

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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.