Home / 3,400.04-4,692.20-1,984.64

Finding the Fourth Proportional to 3,400.04, 4,692.20 and 1,984.64

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Solution

The fourth proportional to 3,400.04, 4,692.20 and 1,984.64 is: 2,738.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.04 : 4,692.20 = 1,984.64 : x
  2. Step 2: Convert to fraction form
    3,400.04/4,692.20 = 1,984.64/x
  3. Step 3: Cross multiply
    3,400.04x = 4,692.20 × 1,984.64
  4. Step 4: Simplify right side
    3,400.04x = 9,312,327.81
  5. Step 5: Solve for x
    x = 9,312,327.81/3,400.04
  6. Step 6: Final answer
    x = 2,738.89

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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.