Home / 4,813.85-7,218.05-1,890.56

Finding the Fourth Proportional to 4,813.85, 7,218.05 and 1,890.56

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Solution

The fourth proportional to 4,813.85, 7,218.05 and 1,890.56 is: 2,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.85 : 7,218.05 = 1,890.56 : x
  2. Step 2: Convert to fraction form
    4,813.85/7,218.05 = 1,890.56/x
  3. Step 3: Cross multiply
    4,813.85x = 7,218.05 × 1,890.56
  4. Step 4: Simplify right side
    4,813.85x = 13,646,165.20
  5. Step 5: Solve for x
    x = 13,646,165.20/4,813.85
  6. Step 6: Final answer
    x = 2,834.77

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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.