Home / 2,877.18-4,315.50-1,338.18

Finding the Fourth Proportional to 2,877.18, 4,315.50 and 1,338.18

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Solution

The fourth proportional to 2,877.18, 4,315.50 and 1,338.18 is: 2,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.18 : 4,315.50 = 1,338.18 : x
  2. Step 2: Convert to fraction form
    2,877.18/4,315.50 = 1,338.18/x
  3. Step 3: Cross multiply
    2,877.18x = 4,315.50 × 1,338.18
  4. Step 4: Simplify right side
    2,877.18x = 5,774,915.79
  5. Step 5: Solve for x
    x = 5,774,915.79/2,877.18
  6. Step 6: Final answer
    x = 2,007.14

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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.