Home / 2,877.58-4,316.55-929.86

Finding the Fourth Proportional to 2,877.58, 4,316.55 and 929.86

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Solution

The fourth proportional to 2,877.58, 4,316.55 and 929.86 is: 1,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.58 : 4,316.55 = 929.86 : x
  2. Step 2: Convert to fraction form
    2,877.58/4,316.55 = 929.86/x
  3. Step 3: Cross multiply
    2,877.58x = 4,316.55 × 929.86
  4. Step 4: Simplify right side
    2,877.58x = 4,013,787.18
  5. Step 5: Solve for x
    x = 4,013,787.18/2,877.58
  6. Step 6: Final answer
    x = 1,394.85

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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.