Home / 3,353.99-5,031.25-1,405.13

Finding the Fourth Proportional to 3,353.99, 5,031.25 and 1,405.13

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Solution

The fourth proportional to 3,353.99, 5,031.25 and 1,405.13 is: 2,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.99 : 5,031.25 = 1,405.13 : x
  2. Step 2: Convert to fraction form
    3,353.99/5,031.25 = 1,405.13/x
  3. Step 3: Cross multiply
    3,353.99x = 5,031.25 × 1,405.13
  4. Step 4: Simplify right side
    3,353.99x = 7,069,531.64
  5. Step 5: Solve for x
    x = 7,069,531.64/3,353.99
  6. Step 6: Final answer
    x = 2,107.80

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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.