Home / 2,789.29-3,849.06-1,530.10

Finding the Fourth Proportional to 2,789.29, 3,849.06 and 1,530.10

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Solution

The fourth proportional to 2,789.29, 3,849.06 and 1,530.10 is: 2,111.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.29 : 3,849.06 = 1,530.10 : x
  2. Step 2: Convert to fraction form
    2,789.29/3,849.06 = 1,530.10/x
  3. Step 3: Cross multiply
    2,789.29x = 3,849.06 × 1,530.10
  4. Step 4: Simplify right side
    2,789.29x = 5,889,446.71
  5. Step 5: Solve for x
    x = 5,889,446.71/2,789.29
  6. Step 6: Final answer
    x = 2,111.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.