Home / 1,981.30-2,734.02-1,097.10

Finding the Fourth Proportional to 1,981.30, 2,734.02 and 1,097.10

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Solution

The fourth proportional to 1,981.30, 2,734.02 and 1,097.10 is: 1,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.30 : 2,734.02 = 1,097.10 : x
  2. Step 2: Convert to fraction form
    1,981.30/2,734.02 = 1,097.10/x
  3. Step 3: Cross multiply
    1,981.30x = 2,734.02 × 1,097.10
  4. Step 4: Simplify right side
    1,981.30x = 2,999,493.34
  5. Step 5: Solve for x
    x = 2,999,493.34/1,981.30
  6. Step 6: Final answer
    x = 1,513.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.