Home / 1,079.48-1,619.50-310.04

Finding the Fourth Proportional to 1,079.48, 1,619.50 and 310.04

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Solution

The fourth proportional to 1,079.48, 1,619.50 and 310.04 is: 465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.48 : 1,619.50 = 310.04 : x
  2. Step 2: Convert to fraction form
    1,079.48/1,619.50 = 310.04/x
  3. Step 3: Cross multiply
    1,079.48x = 1,619.50 × 310.04
  4. Step 4: Simplify right side
    1,079.48x = 502,109.78
  5. Step 5: Solve for x
    x = 502,109.78/1,079.48
  6. Step 6: Final answer
    x = 465.14

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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.