Home / 2,789.12-3,848.95-1,530.18

Finding the Fourth Proportional to 2,789.12, 3,848.95 and 1,530.18

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Solution

The fourth proportional to 2,789.12, 3,848.95 and 1,530.18 is: 2,111.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.12 : 3,848.95 = 1,530.18 : x
  2. Step 2: Convert to fraction form
    2,789.12/3,848.95 = 1,530.18/x
  3. Step 3: Cross multiply
    2,789.12x = 3,848.95 × 1,530.18
  4. Step 4: Simplify right side
    2,789.12x = 5,889,586.31
  5. Step 5: Solve for x
    x = 5,889,586.31/2,789.12
  6. Step 6: Final answer
    x = 2,111.63

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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.