Home / 1,769.05-2,445.87-1,691.58

Finding the Fourth Proportional to 1,769.05, 2,445.87 and 1,691.58

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Solution

The fourth proportional to 1,769.05, 2,445.87 and 1,691.58 is: 2,338.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.05 : 2,445.87 = 1,691.58 : x
  2. Step 2: Convert to fraction form
    1,769.05/2,445.87 = 1,691.58/x
  3. Step 3: Cross multiply
    1,769.05x = 2,445.87 × 1,691.58
  4. Step 4: Simplify right side
    1,769.05x = 4,137,384.77
  5. Step 5: Solve for x
    x = 4,137,384.77/1,769.05
  6. Step 6: Final answer
    x = 2,338.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.