Home / 1,509.39-2,080.13-1,177.29

Finding the Fourth Proportional to 1,509.39, 2,080.13 and 1,177.29

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Solution

The fourth proportional to 1,509.39, 2,080.13 and 1,177.29 is: 1,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.39 : 2,080.13 = 1,177.29 : x
  2. Step 2: Convert to fraction form
    1,509.39/2,080.13 = 1,177.29/x
  3. Step 3: Cross multiply
    1,509.39x = 2,080.13 × 1,177.29
  4. Step 4: Simplify right side
    1,509.39x = 2,448,916.25
  5. Step 5: Solve for x
    x = 2,448,916.25/1,509.39
  6. Step 6: Final answer
    x = 1,622.45

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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.