Home / 1,255.19-1,730.25-1,055.93

Finding the Fourth Proportional to 1,255.19, 1,730.25 and 1,055.93

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Solution

The fourth proportional to 1,255.19, 1,730.25 and 1,055.93 is: 1,455.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.19 : 1,730.25 = 1,055.93 : x
  2. Step 2: Convert to fraction form
    1,255.19/1,730.25 = 1,055.93/x
  3. Step 3: Cross multiply
    1,255.19x = 1,730.25 × 1,055.93
  4. Step 4: Simplify right side
    1,255.19x = 1,827,022.88
  5. Step 5: Solve for x
    x = 1,827,022.88/1,255.19
  6. Step 6: Final answer
    x = 1,455.57

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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.