Home / 5,385.85-8,073.88-1,922.29

Finding the Fourth Proportional to 5,385.85, 8,073.88 and 1,922.29

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Solution

The fourth proportional to 5,385.85, 8,073.88 and 1,922.29 is: 2,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.85 : 8,073.88 = 1,922.29 : x
  2. Step 2: Convert to fraction form
    5,385.85/8,073.88 = 1,922.29/x
  3. Step 3: Cross multiply
    5,385.85x = 8,073.88 × 1,922.29
  4. Step 4: Simplify right side
    5,385.85x = 15,520,313.79
  5. Step 5: Solve for x
    x = 15,520,313.79/5,385.85
  6. Step 6: Final answer
    x = 2,881.68

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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.