Home / 2,402.94-3,316.11-1,355

Finding the Fourth Proportional to 2,402.94, 3,316.11 and 1,355

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Solution

The fourth proportional to 2,402.94, 3,316.11 and 1,355 is: 1,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.94 : 3,316.11 = 1,355 : x
  2. Step 2: Convert to fraction form
    2,402.94/3,316.11 = 1,355/x
  3. Step 3: Cross multiply
    2,402.94x = 3,316.11 × 1,355
  4. Step 4: Simplify right side
    2,402.94x = 4,493,329.05
  5. Step 5: Solve for x
    x = 4,493,329.05/2,402.94
  6. Step 6: Final answer
    x = 1,869.93

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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.