Home / 2,436.90-3,658.95-1,889.70

Finding the Fourth Proportional to 2,436.90, 3,658.95 and 1,889.70

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Solution

The fourth proportional to 2,436.90, 3,658.95 and 1,889.70 is: 2,837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.90 : 3,658.95 = 1,889.70 : x
  2. Step 2: Convert to fraction form
    2,436.90/3,658.95 = 1,889.70/x
  3. Step 3: Cross multiply
    2,436.90x = 3,658.95 × 1,889.70
  4. Step 4: Simplify right side
    2,436.90x = 6,914,317.82
  5. Step 5: Solve for x
    x = 6,914,317.82/2,436.90
  6. Step 6: Final answer
    x = 2,837.34

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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.