Home / 4,243.72-6,365.94-1,123.72

Finding the Fourth Proportional to 4,243.72, 6,365.94 and 1,123.72

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Solution

The fourth proportional to 4,243.72, 6,365.94 and 1,123.72 is: 1,685.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.72 : 6,365.94 = 1,123.72 : x
  2. Step 2: Convert to fraction form
    4,243.72/6,365.94 = 1,123.72/x
  3. Step 3: Cross multiply
    4,243.72x = 6,365.94 × 1,123.72
  4. Step 4: Simplify right side
    4,243.72x = 7,153,534.10
  5. Step 5: Solve for x
    x = 7,153,534.10/4,243.72
  6. Step 6: Final answer
    x = 1,685.68

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1.5x scale

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.