Home / 2,690.17-3,712.47-1,511.23

Finding the Fourth Proportional to 2,690.17, 3,712.47 and 1,511.23

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Solution

The fourth proportional to 2,690.17, 3,712.47 and 1,511.23 is: 2,085.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.17 : 3,712.47 = 1,511.23 : x
  2. Step 2: Convert to fraction form
    2,690.17/3,712.47 = 1,511.23/x
  3. Step 3: Cross multiply
    2,690.17x = 3,712.47 × 1,511.23
  4. Step 4: Simplify right side
    2,690.17x = 5,610,396.04
  5. Step 5: Solve for x
    x = 5,610,396.04/2,690.17
  6. Step 6: Final answer
    x = 2,085.52

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Why These Related Problems?

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