Home / 1,491.22-2,056.44-959.56

Finding the Fourth Proportional to 1,491.22, 2,056.44 and 959.56

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Solution

The fourth proportional to 1,491.22, 2,056.44 and 959.56 is: 1,323.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.22 : 2,056.44 = 959.56 : x
  2. Step 2: Convert to fraction form
    1,491.22/2,056.44 = 959.56/x
  3. Step 3: Cross multiply
    1,491.22x = 2,056.44 × 959.56
  4. Step 4: Simplify right side
    1,491.22x = 1,973,272.43
  5. Step 5: Solve for x
    x = 1,973,272.43/1,491.22
  6. Step 6: Final answer
    x = 1,323.26

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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.