Home / 5,155.42-7,733.68-1,692.68

Finding the Fourth Proportional to 5,155.42, 7,733.68 and 1,692.68

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Solution

The fourth proportional to 5,155.42, 7,733.68 and 1,692.68 is: 2,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.42 : 7,733.68 = 1,692.68 : x
  2. Step 2: Convert to fraction form
    5,155.42/7,733.68 = 1,692.68/x
  3. Step 3: Cross multiply
    5,155.42x = 7,733.68 × 1,692.68
  4. Step 4: Simplify right side
    5,155.42x = 13,090,645.46
  5. Step 5: Solve for x
    x = 13,090,645.46/5,155.42
  6. Step 6: Final answer
    x = 2,539.20

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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.