Home / 2,690.91-4,036.75-1,303.11

Finding the Fourth Proportional to 2,690.91, 4,036.75 and 1,303.11

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Solution

The fourth proportional to 2,690.91, 4,036.75 and 1,303.11 is: 1,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.91 : 4,036.75 = 1,303.11 : x
  2. Step 2: Convert to fraction form
    2,690.91/4,036.75 = 1,303.11/x
  3. Step 3: Cross multiply
    2,690.91x = 4,036.75 × 1,303.11
  4. Step 4: Simplify right side
    2,690.91x = 5,260,309.11
  5. Step 5: Solve for x
    x = 5,260,309.11/2,690.91
  6. Step 6: Final answer
    x = 1,954.84

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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.