Home / 3,259.40-4,888.89-1,409.21

Finding the Fourth Proportional to 3,259.40, 4,888.89 and 1,409.21

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Solution

The fourth proportional to 3,259.40, 4,888.89 and 1,409.21 is: 2,113.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.40 : 4,888.89 = 1,409.21 : x
  2. Step 2: Convert to fraction form
    3,259.40/4,888.89 = 1,409.21/x
  3. Step 3: Cross multiply
    3,259.40x = 4,888.89 × 1,409.21
  4. Step 4: Simplify right side
    3,259.40x = 6,889,472.68
  5. Step 5: Solve for x
    x = 6,889,472.68/3,259.40
  6. Step 6: Final answer
    x = 2,113.72

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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.