Home / 7,742.43-10,684.85-4,385.39

Finding the Fourth Proportional to 7,742.43, 10,684.85 and 4,385.39

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Solution

The fourth proportional to 7,742.43, 10,684.85 and 4,385.39 is: 6,052.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.43 : 10,684.85 = 4,385.39 : x
  2. Step 2: Convert to fraction form
    7,742.43/10,684.85 = 4,385.39/x
  3. Step 3: Cross multiply
    7,742.43x = 10,684.85 × 4,385.39
  4. Step 4: Simplify right side
    7,742.43x = 46,857,158.99
  5. Step 5: Solve for x
    x = 46,857,158.99/7,742.43
  6. Step 6: Final answer
    x = 6,052.00

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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.