Home / 3,639.36-5,460-1,042.52

Finding the Fourth Proportional to 3,639.36, 5,460 and 1,042.52

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Solution

The fourth proportional to 3,639.36, 5,460 and 1,042.52 is: 1,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.36 : 5,460 = 1,042.52 : x
  2. Step 2: Convert to fraction form
    3,639.36/5,460 = 1,042.52/x
  3. Step 3: Cross multiply
    3,639.36x = 5,460 × 1,042.52
  4. Step 4: Simplify right side
    3,639.36x = 5,692,159.20
  5. Step 5: Solve for x
    x = 5,692,159.20/3,639.36
  6. Step 6: Final answer
    x = 1,564.05

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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.