Home / 3,485.05-5,228.48-3,423.08

Finding the Fourth Proportional to 3,485.05, 5,228.48 and 3,423.08

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Solution

The fourth proportional to 3,485.05, 5,228.48 and 3,423.08 is: 5,135.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.05 : 5,228.48 = 3,423.08 : x
  2. Step 2: Convert to fraction form
    3,485.05/5,228.48 = 3,423.08/x
  3. Step 3: Cross multiply
    3,485.05x = 5,228.48 × 3,423.08
  4. Step 4: Simplify right side
    3,485.05x = 17,897,526.95
  5. Step 5: Solve for x
    x = 17,897,526.95/3,485.05
  6. Step 6: Final answer
    x = 5,135.52

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Half scale
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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.