Home / 1,509.14-2,079.79-1,177.04

Finding the Fourth Proportional to 1,509.14, 2,079.79 and 1,177.04

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Solution

The fourth proportional to 1,509.14, 2,079.79 and 1,177.04 is: 1,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.14 : 2,079.79 = 1,177.04 : x
  2. Step 2: Convert to fraction form
    1,509.14/2,079.79 = 1,177.04/x
  3. Step 3: Cross multiply
    1,509.14x = 2,079.79 × 1,177.04
  4. Step 4: Simplify right side
    1,509.14x = 2,447,979.74
  5. Step 5: Solve for x
    x = 2,447,979.74/1,509.14
  6. Step 6: Final answer
    x = 1,622.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.