Home / 2,909.21-4,364.63-1,611.59

Finding the Fourth Proportional to 2,909.21, 4,364.63 and 1,611.59

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Solution

The fourth proportional to 2,909.21, 4,364.63 and 1,611.59 is: 2,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.21 : 4,364.63 = 1,611.59 : x
  2. Step 2: Convert to fraction form
    2,909.21/4,364.63 = 1,611.59/x
  3. Step 3: Cross multiply
    2,909.21x = 4,364.63 × 1,611.59
  4. Step 4: Simplify right side
    2,909.21x = 7,033,986.00
  5. Step 5: Solve for x
    x = 7,033,986.00/2,909.21
  6. Step 6: Final answer
    x = 2,417.83

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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.