Home / 5,385.40-8,074.79-2,094.66

Finding the Fourth Proportional to 5,385.40, 8,074.79 and 2,094.66

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Solution

The fourth proportional to 5,385.40, 8,074.79 and 2,094.66 is: 3,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.40 : 8,074.79 = 2,094.66 : x
  2. Step 2: Convert to fraction form
    5,385.40/8,074.79 = 2,094.66/x
  3. Step 3: Cross multiply
    5,385.40x = 8,074.79 × 2,094.66
  4. Step 4: Simplify right side
    5,385.40x = 16,913,939.62
  5. Step 5: Solve for x
    x = 16,913,939.62/5,385.40
  6. Step 6: Final answer
    x = 3,140.70

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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.