Home / 5,135.40-7,709.50-4,900.04

Finding the Fourth Proportional to 5,135.40, 7,709.50 and 4,900.04

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Solution

The fourth proportional to 5,135.40, 7,709.50 and 4,900.04 is: 7,356.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.40 : 7,709.50 = 4,900.04 : x
  2. Step 2: Convert to fraction form
    5,135.40/7,709.50 = 4,900.04/x
  3. Step 3: Cross multiply
    5,135.40x = 7,709.50 × 4,900.04
  4. Step 4: Simplify right side
    5,135.40x = 37,776,858.38
  5. Step 5: Solve for x
    x = 37,776,858.38/5,135.40
  6. Step 6: Final answer
    x = 7,356.17

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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.