Home / 7,590.80-11,378.46-2,909.60

Finding the Fourth Proportional to 7,590.80, 11,378.46 and 2,909.60

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Solution

The fourth proportional to 7,590.80, 11,378.46 and 2,909.60 is: 4,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,590.80 : 11,378.46 = 2,909.60 : x
  2. Step 2: Convert to fraction form
    7,590.80/11,378.46 = 2,909.60/x
  3. Step 3: Cross multiply
    7,590.80x = 11,378.46 × 2,909.60
  4. Step 4: Simplify right side
    7,590.80x = 33,106,767.22
  5. Step 5: Solve for x
    x = 33,106,767.22/7,590.80
  6. Step 6: Final answer
    x = 4,361.43

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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.