Home / 2,488.20-3,433.70-1,369.08

Finding the Fourth Proportional to 2,488.20, 3,433.70 and 1,369.08

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Solution

The fourth proportional to 2,488.20, 3,433.70 and 1,369.08 is: 1,889.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.20 : 3,433.70 = 1,369.08 : x
  2. Step 2: Convert to fraction form
    2,488.20/3,433.70 = 1,369.08/x
  3. Step 3: Cross multiply
    2,488.20x = 3,433.70 × 1,369.08
  4. Step 4: Simplify right side
    2,488.20x = 4,701,010.00
  5. Step 5: Solve for x
    x = 4,701,010.00/2,488.20
  6. Step 6: Final answer
    x = 1,889.32

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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.