Home / 2,985.12-4,484.91-2,635.20

Finding the Fourth Proportional to 2,985.12, 4,484.91 and 2,635.20

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Solution

The fourth proportional to 2,985.12, 4,484.91 and 2,635.20 is: 3,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.12 : 4,484.91 = 2,635.20 : x
  2. Step 2: Convert to fraction form
    2,985.12/4,484.91 = 2,635.20/x
  3. Step 3: Cross multiply
    2,985.12x = 4,484.91 × 2,635.20
  4. Step 4: Simplify right side
    2,985.12x = 11,818,634.83
  5. Step 5: Solve for x
    x = 11,818,634.83/2,985.12
  6. Step 6: Final answer
    x = 3,959.18

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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.