Home / 3,409.48-5,114.90-1,329.40

Finding the Fourth Proportional to 3,409.48, 5,114.90 and 1,329.40

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Solution

The fourth proportional to 3,409.48, 5,114.90 and 1,329.40 is: 1,994.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.48 : 5,114.90 = 1,329.40 : x
  2. Step 2: Convert to fraction form
    3,409.48/5,114.90 = 1,329.40/x
  3. Step 3: Cross multiply
    3,409.48x = 5,114.90 × 1,329.40
  4. Step 4: Simplify right side
    3,409.48x = 6,799,748.06
  5. Step 5: Solve for x
    x = 6,799,748.06/3,409.48
  6. Step 6: Final answer
    x = 1,994.37

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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.