Home / 5,418.93-8,123.53-1,955.37

Finding the Fourth Proportional to 5,418.93, 8,123.53 and 1,955.37

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Solution

The fourth proportional to 5,418.93, 8,123.53 and 1,955.37 is: 2,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.93 : 8,123.53 = 1,955.37 : x
  2. Step 2: Convert to fraction form
    5,418.93/8,123.53 = 1,955.37/x
  3. Step 3: Cross multiply
    5,418.93x = 8,123.53 × 1,955.37
  4. Step 4: Simplify right side
    5,418.93x = 15,884,506.86
  5. Step 5: Solve for x
    x = 15,884,506.86/5,418.93
  6. Step 6: Final answer
    x = 2,931.30

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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.