Home / 1,899.15-2,848.49-512.38

Finding the Fourth Proportional to 1,899.15, 2,848.49 and 512.38

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Solution

The fourth proportional to 1,899.15, 2,848.49 and 512.38 is: 768.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.15 : 2,848.49 = 512.38 : x
  2. Step 2: Convert to fraction form
    1,899.15/2,848.49 = 512.38/x
  3. Step 3: Cross multiply
    1,899.15x = 2,848.49 × 512.38
  4. Step 4: Simplify right side
    1,899.15x = 1,459,493.78
  5. Step 5: Solve for x
    x = 1,459,493.78/1,899.15
  6. Step 6: Final answer
    x = 768.50

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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.