Home / 3,423.30-5,133.12-1,778.18

Finding the Fourth Proportional to 3,423.30, 5,133.12 and 1,778.18

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Solution

The fourth proportional to 3,423.30, 5,133.12 and 1,778.18 is: 2,666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.30 : 5,133.12 = 1,778.18 : x
  2. Step 2: Convert to fraction form
    3,423.30/5,133.12 = 1,778.18/x
  3. Step 3: Cross multiply
    3,423.30x = 5,133.12 × 1,778.18
  4. Step 4: Simplify right side
    3,423.30x = 9,127,611.32
  5. Step 5: Solve for x
    x = 9,127,611.32/3,423.30
  6. Step 6: Final answer
    x = 2,666.32

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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.