Home / 1,320.03-1,975.93-1,180.91

Finding the Fourth Proportional to 1,320.03, 1,975.93 and 1,180.91

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Solution

The fourth proportional to 1,320.03, 1,975.93 and 1,180.91 is: 1,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320.03 : 1,975.93 = 1,180.91 : x
  2. Step 2: Convert to fraction form
    1,320.03/1,975.93 = 1,180.91/x
  3. Step 3: Cross multiply
    1,320.03x = 1,975.93 × 1,180.91
  4. Step 4: Simplify right side
    1,320.03x = 2,333,397.48
  5. Step 5: Solve for x
    x = 2,333,397.48/1,320.03
  6. Step 6: Final answer
    x = 1,767.69

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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.