Home / 4,913.80-6,781.06-2,675.68

Finding the Fourth Proportional to 4,913.80, 6,781.06 and 2,675.68

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Solution

The fourth proportional to 4,913.80, 6,781.06 and 2,675.68 is: 3,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.80 : 6,781.06 = 2,675.68 : x
  2. Step 2: Convert to fraction form
    4,913.80/6,781.06 = 2,675.68/x
  3. Step 3: Cross multiply
    4,913.80x = 6,781.06 × 2,675.68
  4. Step 4: Simplify right side
    4,913.80x = 18,143,946.62
  5. Step 5: Solve for x
    x = 18,143,946.62/4,913.80
  6. Step 6: Final answer
    x = 3,692.45

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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.