Home / 3,585.51-5,378.27-1,120.50

Finding the Fourth Proportional to 3,585.51, 5,378.27 and 1,120.50

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Solution

The fourth proportional to 3,585.51, 5,378.27 and 1,120.50 is: 1,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.51 : 5,378.27 = 1,120.50 : x
  2. Step 2: Convert to fraction form
    3,585.51/5,378.27 = 1,120.50/x
  3. Step 3: Cross multiply
    3,585.51x = 5,378.27 × 1,120.50
  4. Step 4: Simplify right side
    3,585.51x = 6,026,345.93
  5. Step 5: Solve for x
    x = 6,026,345.93/3,585.51
  6. Step 6: Final answer
    x = 1,680.75

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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.