Home / 7,820.80-10,791.68-4,675.84

Finding the Fourth Proportional to 7,820.80, 10,791.68 and 4,675.84

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Solution

The fourth proportional to 7,820.80, 10,791.68 and 4,675.84 is: 6,452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.80 : 10,791.68 = 4,675.84 : x
  2. Step 2: Convert to fraction form
    7,820.80/10,791.68 = 4,675.84/x
  3. Step 3: Cross multiply
    7,820.80x = 10,791.68 × 4,675.84
  4. Step 4: Simplify right side
    7,820.80x = 50,460,169.01
  5. Step 5: Solve for x
    x = 50,460,169.01/7,820.80
  6. Step 6: Final answer
    x = 6,452.05

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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.