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Finding the Fourth Proportional to 5,175.79, 7,764.84 and 1,888.88

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Solution

The fourth proportional to 5,175.79, 7,764.84 and 1,888.88 is: 2,833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.79 : 7,764.84 = 1,888.88 : x
  2. Step 2: Convert to fraction form
    5,175.79/7,764.84 = 1,888.88/x
  3. Step 3: Cross multiply
    5,175.79x = 7,764.84 × 1,888.88
  4. Step 4: Simplify right side
    5,175.79x = 14,666,841.53
  5. Step 5: Solve for x
    x = 14,666,841.53/5,175.79
  6. Step 6: Final answer
    x = 2,833.74

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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.