Home / 1,899.03-2,848.65-512.40

Finding the Fourth Proportional to 1,899.03, 2,848.65 and 512.40

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Solution

The fourth proportional to 1,899.03, 2,848.65 and 512.40 is: 768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.03 : 2,848.65 = 512.40 : x
  2. Step 2: Convert to fraction form
    1,899.03/2,848.65 = 512.40/x
  3. Step 3: Cross multiply
    1,899.03x = 2,848.65 × 512.40
  4. Step 4: Simplify right side
    1,899.03x = 1,459,648.26
  5. Step 5: Solve for x
    x = 1,459,648.26/1,899.03
  6. Step 6: Final answer
    x = 768.63

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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.