Home / 1,905.88-2,631.56-1,512.24

Finding the Fourth Proportional to 1,905.88, 2,631.56 and 1,512.24

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Solution

The fourth proportional to 1,905.88, 2,631.56 and 1,512.24 is: 2,088.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.88 : 2,631.56 = 1,512.24 : x
  2. Step 2: Convert to fraction form
    1,905.88/2,631.56 = 1,512.24/x
  3. Step 3: Cross multiply
    1,905.88x = 2,631.56 × 1,512.24
  4. Step 4: Simplify right side
    1,905.88x = 3,979,550.29
  5. Step 5: Solve for x
    x = 3,979,550.29/1,905.88
  6. Step 6: Final answer
    x = 2,088.04

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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.