Home / 3,508.86-5,263.56-2,123.76

Finding the Fourth Proportional to 3,508.86, 5,263.56 and 2,123.76

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Solution

The fourth proportional to 3,508.86, 5,263.56 and 2,123.76 is: 3,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.86 : 5,263.56 = 2,123.76 : x
  2. Step 2: Convert to fraction form
    3,508.86/5,263.56 = 2,123.76/x
  3. Step 3: Cross multiply
    3,508.86x = 5,263.56 × 2,123.76
  4. Step 4: Simplify right side
    3,508.86x = 11,178,538.19
  5. Step 5: Solve for x
    x = 11,178,538.19/3,508.86
  6. Step 6: Final answer
    x = 3,185.80

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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.