Home / 2,631.68-3,943.36-1,705.60

Finding the Fourth Proportional to 2,631.68, 3,943.36 and 1,705.60

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Solution

The fourth proportional to 2,631.68, 3,943.36 and 1,705.60 is: 2,555.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.68 : 3,943.36 = 1,705.60 : x
  2. Step 2: Convert to fraction form
    2,631.68/3,943.36 = 1,705.60/x
  3. Step 3: Cross multiply
    2,631.68x = 3,943.36 × 1,705.60
  4. Step 4: Simplify right side
    2,631.68x = 6,725,794.82
  5. Step 5: Solve for x
    x = 6,725,794.82/2,631.68
  6. Step 6: Final answer
    x = 2,555.70

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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.