Home / 2,764.47-4,139.64-1,530.51

Finding the Fourth Proportional to 2,764.47, 4,139.64 and 1,530.51

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Solution

The fourth proportional to 2,764.47, 4,139.64 and 1,530.51 is: 2,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.47 : 4,139.64 = 1,530.51 : x
  2. Step 2: Convert to fraction form
    2,764.47/4,139.64 = 1,530.51/x
  3. Step 3: Cross multiply
    2,764.47x = 4,139.64 × 1,530.51
  4. Step 4: Simplify right side
    2,764.47x = 6,335,760.42
  5. Step 5: Solve for x
    x = 6,335,760.42/2,764.47
  6. Step 6: Final answer
    x = 2,291.85

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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.