Home / 2,685.61-4,026.39-1,644.49

Finding the Fourth Proportional to 2,685.61, 4,026.39 and 1,644.49

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Solution

The fourth proportional to 2,685.61, 4,026.39 and 1,644.49 is: 2,465.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.61 : 4,026.39 = 1,644.49 : x
  2. Step 2: Convert to fraction form
    2,685.61/4,026.39 = 1,644.49/x
  3. Step 3: Cross multiply
    2,685.61x = 4,026.39 × 1,644.49
  4. Step 4: Simplify right side
    2,685.61x = 6,621,358.09
  5. Step 5: Solve for x
    x = 6,621,358.09/2,685.61
  6. Step 6: Final answer
    x = 2,465.50

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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.