Home / 2,310.49-3,188.47-1,262.55

Finding the Fourth Proportional to 2,310.49, 3,188.47 and 1,262.55

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Solution

The fourth proportional to 2,310.49, 3,188.47 and 1,262.55 is: 1,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.49 : 3,188.47 = 1,262.55 : x
  2. Step 2: Convert to fraction form
    2,310.49/3,188.47 = 1,262.55/x
  3. Step 3: Cross multiply
    2,310.49x = 3,188.47 × 1,262.55
  4. Step 4: Simplify right side
    2,310.49x = 4,025,602.80
  5. Step 5: Solve for x
    x = 4,025,602.80/2,310.49
  6. Step 6: Final answer
    x = 1,742.32

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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.