Home / 2,488.61-3,434.49-1,369.76

Finding the Fourth Proportional to 2,488.61, 3,434.49 and 1,369.76

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Solution

The fourth proportional to 2,488.61, 3,434.49 and 1,369.76 is: 1,890.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.61 : 3,434.49 = 1,369.76 : x
  2. Step 2: Convert to fraction form
    2,488.61/3,434.49 = 1,369.76/x
  3. Step 3: Cross multiply
    2,488.61x = 3,434.49 × 1,369.76
  4. Step 4: Simplify right side
    2,488.61x = 4,704,415.01
  5. Step 5: Solve for x
    x = 4,704,415.01/2,488.61
  6. Step 6: Final answer
    x = 1,890.38

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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.