Home / 2,117.10-3,166.65-1,899.30

Finding the Fourth Proportional to 2,117.10, 3,166.65 and 1,899.30

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Solution

The fourth proportional to 2,117.10, 3,166.65 and 1,899.30 is: 2,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.10 : 3,166.65 = 1,899.30 : x
  2. Step 2: Convert to fraction form
    2,117.10/3,166.65 = 1,899.30/x
  3. Step 3: Cross multiply
    2,117.10x = 3,166.65 × 1,899.30
  4. Step 4: Simplify right side
    2,117.10x = 6,014,418.35
  5. Step 5: Solve for x
    x = 6,014,418.35/2,117.10
  6. Step 6: Final answer
    x = 2,840.88

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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.