Home / 2,772.08-3,825.47-1,530.08

Finding the Fourth Proportional to 2,772.08, 3,825.47 and 1,530.08

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Solution

The fourth proportional to 2,772.08, 3,825.47 and 1,530.08 is: 2,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.08 : 3,825.47 = 1,530.08 : x
  2. Step 2: Convert to fraction form
    2,772.08/3,825.47 = 1,530.08/x
  3. Step 3: Cross multiply
    2,772.08x = 3,825.47 × 1,530.08
  4. Step 4: Simplify right side
    2,772.08x = 5,853,275.14
  5. Step 5: Solve for x
    x = 5,853,275.14/2,772.08
  6. Step 6: Final answer
    x = 2,111.51

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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.