Home / 2,488.68-3,434.40-1,369.64

Finding the Fourth Proportional to 2,488.68, 3,434.40 and 1,369.64

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Solution

The fourth proportional to 2,488.68, 3,434.40 and 1,369.64 is: 1,890.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.68 : 3,434.40 = 1,369.64 : x
  2. Step 2: Convert to fraction form
    2,488.68/3,434.40 = 1,369.64/x
  3. Step 3: Cross multiply
    2,488.68x = 3,434.40 × 1,369.64
  4. Step 4: Simplify right side
    2,488.68x = 4,703,891.62
  5. Step 5: Solve for x
    x = 4,703,891.62/2,488.68
  6. Step 6: Final answer
    x = 1,890.12

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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.