Home / 1,141.04-1,711.68-491.80

Finding the Fourth Proportional to 1,141.04, 1,711.68 and 491.80

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Solution

The fourth proportional to 1,141.04, 1,711.68 and 491.80 is: 737.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141.04 : 1,711.68 = 491.80 : x
  2. Step 2: Convert to fraction form
    1,141.04/1,711.68 = 491.80/x
  3. Step 3: Cross multiply
    1,141.04x = 1,711.68 × 491.80
  4. Step 4: Simplify right side
    1,141.04x = 841,804.22
  5. Step 5: Solve for x
    x = 841,804.22/1,141.04
  6. Step 6: Final answer
    x = 737.75

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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.