Home / 1,813.42-2,718.91-948.34

Finding the Fourth Proportional to 1,813.42, 2,718.91 and 948.34

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Solution

The fourth proportional to 1,813.42, 2,718.91 and 948.34 is: 1,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.42 : 2,718.91 = 948.34 : x
  2. Step 2: Convert to fraction form
    1,813.42/2,718.91 = 948.34/x
  3. Step 3: Cross multiply
    1,813.42x = 2,718.91 × 948.34
  4. Step 4: Simplify right side
    1,813.42x = 2,578,451.11
  5. Step 5: Solve for x
    x = 2,578,451.11/1,813.42
  6. Step 6: Final answer
    x = 1,421.87

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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.