Home / 2,017.15-3,026.08-921.62

Finding the Fourth Proportional to 2,017.15, 3,026.08 and 921.62

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Solution

The fourth proportional to 2,017.15, 3,026.08 and 921.62 is: 1,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.15 : 3,026.08 = 921.62 : x
  2. Step 2: Convert to fraction form
    2,017.15/3,026.08 = 921.62/x
  3. Step 3: Cross multiply
    2,017.15x = 3,026.08 × 921.62
  4. Step 4: Simplify right side
    2,017.15x = 2,788,901.11
  5. Step 5: Solve for x
    x = 2,788,901.11/2,017.15
  6. Step 6: Final answer
    x = 1,382.60

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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.