Home / 2,909.58-4,015.21-1,583.26

Finding the Fourth Proportional to 2,909.58, 4,015.21 and 1,583.26

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Solution

The fourth proportional to 2,909.58, 4,015.21 and 1,583.26 is: 2,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.58 : 4,015.21 = 1,583.26 : x
  2. Step 2: Convert to fraction form
    2,909.58/4,015.21 = 1,583.26/x
  3. Step 3: Cross multiply
    2,909.58x = 4,015.21 × 1,583.26
  4. Step 4: Simplify right side
    2,909.58x = 6,357,121.38
  5. Step 5: Solve for x
    x = 6,357,121.38/2,909.58
  6. Step 6: Final answer
    x = 2,184.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.