Home / 1,544.42-2,131.28-845.80

Finding the Fourth Proportional to 1,544.42, 2,131.28 and 845.80

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Solution

The fourth proportional to 1,544.42, 2,131.28 and 845.80 is: 1,167.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.42 : 2,131.28 = 845.80 : x
  2. Step 2: Convert to fraction form
    1,544.42/2,131.28 = 845.80/x
  3. Step 3: Cross multiply
    1,544.42x = 2,131.28 × 845.80
  4. Step 4: Simplify right side
    1,544.42x = 1,802,630.24
  5. Step 5: Solve for x
    x = 1,802,630.24/1,544.42
  6. Step 6: Final answer
    x = 1,167.19

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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.