Home / 5,715.83-8,575.47-2,385.68

Finding the Fourth Proportional to 5,715.83, 8,575.47 and 2,385.68

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Solution

The fourth proportional to 5,715.83, 8,575.47 and 2,385.68 is: 3,579.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.83 : 8,575.47 = 2,385.68 : x
  2. Step 2: Convert to fraction form
    5,715.83/8,575.47 = 2,385.68/x
  3. Step 3: Cross multiply
    5,715.83x = 8,575.47 × 2,385.68
  4. Step 4: Simplify right side
    5,715.83x = 20,458,284.39
  5. Step 5: Solve for x
    x = 20,458,284.39/5,715.83
  6. Step 6: Final answer
    x = 3,579.24

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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.