Home / 1,491.32-2,236.68-962.64

Finding the Fourth Proportional to 1,491.32, 2,236.68 and 962.64

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Solution

The fourth proportional to 1,491.32, 2,236.68 and 962.64 is: 1,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.32 : 2,236.68 = 962.64 : x
  2. Step 2: Convert to fraction form
    1,491.32/2,236.68 = 962.64/x
  3. Step 3: Cross multiply
    1,491.32x = 2,236.68 × 962.64
  4. Step 4: Simplify right side
    1,491.32x = 2,153,117.64
  5. Step 5: Solve for x
    x = 2,153,117.64/1,491.32
  6. Step 6: Final answer
    x = 1,443.77

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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.