Home / 4,877.91-7,317.23-1,415.43

Finding the Fourth Proportional to 4,877.91, 7,317.23 and 1,415.43

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Solution

The fourth proportional to 4,877.91, 7,317.23 and 1,415.43 is: 2,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.91 : 7,317.23 = 1,415.43 : x
  2. Step 2: Convert to fraction form
    4,877.91/7,317.23 = 1,415.43/x
  3. Step 3: Cross multiply
    4,877.91x = 7,317.23 × 1,415.43
  4. Step 4: Simplify right side
    4,877.91x = 10,357,019.78
  5. Step 5: Solve for x
    x = 10,357,019.78/4,877.91
  6. Step 6: Final answer
    x = 2,123.25

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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.