Home / 1,180.36-1,769.10-530.20

Finding the Fourth Proportional to 1,180.36, 1,769.10 and 530.20

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Solution

The fourth proportional to 1,180.36, 1,769.10 and 530.20 is: 794.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.36 : 1,769.10 = 530.20 : x
  2. Step 2: Convert to fraction form
    1,180.36/1,769.10 = 530.20/x
  3. Step 3: Cross multiply
    1,180.36x = 1,769.10 × 530.20
  4. Step 4: Simplify right side
    1,180.36x = 937,976.82
  5. Step 5: Solve for x
    x = 937,976.82/1,180.36
  6. Step 6: Final answer
    x = 794.65

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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.