Home / 5,820.39-8,685.87-5,197.59

Finding the Fourth Proportional to 5,820.39, 8,685.87 and 5,197.59

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Solution

The fourth proportional to 5,820.39, 8,685.87 and 5,197.59 is: 7,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.39 : 8,685.87 = 5,197.59 : x
  2. Step 2: Convert to fraction form
    5,820.39/8,685.87 = 5,197.59/x
  3. Step 3: Cross multiply
    5,820.39x = 8,685.87 × 5,197.59
  4. Step 4: Simplify right side
    5,820.39x = 45,145,591.05
  5. Step 5: Solve for x
    x = 45,145,591.05/5,820.39
  6. Step 6: Final answer
    x = 7,756.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.