Home / 2,690.16-3,712.42-1,511.24

Finding the Fourth Proportional to 2,690.16, 3,712.42 and 1,511.24

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Solution

The fourth proportional to 2,690.16, 3,712.42 and 1,511.24 is: 2,085.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.16 : 3,712.42 = 1,511.24 : x
  2. Step 2: Convert to fraction form
    2,690.16/3,712.42 = 1,511.24/x
  3. Step 3: Cross multiply
    2,690.16x = 3,712.42 × 1,511.24
  4. Step 4: Simplify right side
    2,690.16x = 5,610,357.60
  5. Step 5: Solve for x
    x = 5,610,357.60/2,690.16
  6. Step 6: Final answer
    x = 2,085.51

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1.5x scale

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.