Home / 1,491.60-2,238.32-943.03

Finding the Fourth Proportional to 1,491.60, 2,238.32 and 943.03

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Solution

The fourth proportional to 1,491.60, 2,238.32 and 943.03 is: 1,415.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.60 : 2,238.32 = 943.03 : x
  2. Step 2: Convert to fraction form
    1,491.60/2,238.32 = 943.03/x
  3. Step 3: Cross multiply
    1,491.60x = 2,238.32 × 943.03
  4. Step 4: Simplify right side
    1,491.60x = 2,110,802.91
  5. Step 5: Solve for x
    x = 2,110,802.91/1,491.60
  6. Step 6: Final answer
    x = 1,415.13

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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.