Home / 5,123.59-7,687.81-1,837.01

Finding the Fourth Proportional to 5,123.59, 7,687.81 and 1,837.01

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Solution

The fourth proportional to 5,123.59, 7,687.81 and 1,837.01 is: 2,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.59 : 7,687.81 = 1,837.01 : x
  2. Step 2: Convert to fraction form
    5,123.59/7,687.81 = 1,837.01/x
  3. Step 3: Cross multiply
    5,123.59x = 7,687.81 × 1,837.01
  4. Step 4: Simplify right side
    5,123.59x = 14,122,605.36
  5. Step 5: Solve for x
    x = 14,122,605.36/5,123.59
  6. Step 6: Final answer
    x = 2,756.39

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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.