Home / 3,503.72-4,834.80-1,931.81

Finding the Fourth Proportional to 3,503.72, 4,834.80 and 1,931.81

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Solution

The fourth proportional to 3,503.72, 4,834.80 and 1,931.81 is: 2,665.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.72 : 4,834.80 = 1,931.81 : x
  2. Step 2: Convert to fraction form
    3,503.72/4,834.80 = 1,931.81/x
  3. Step 3: Cross multiply
    3,503.72x = 4,834.80 × 1,931.81
  4. Step 4: Simplify right side
    3,503.72x = 9,339,890.81
  5. Step 5: Solve for x
    x = 9,339,890.81/3,503.72
  6. Step 6: Final answer
    x = 2,665.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.