Home / 1,948.40-2,682.58-1,815.92

Finding the Fourth Proportional to 1,948.40, 2,682.58 and 1,815.92

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Solution

The fourth proportional to 1,948.40, 2,682.58 and 1,815.92 is: 2,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.40 : 2,682.58 = 1,815.92 : x
  2. Step 2: Convert to fraction form
    1,948.40/2,682.58 = 1,815.92/x
  3. Step 3: Cross multiply
    1,948.40x = 2,682.58 × 1,815.92
  4. Step 4: Simplify right side
    1,948.40x = 4,871,350.67
  5. Step 5: Solve for x
    x = 4,871,350.67/1,948.40
  6. Step 6: Final answer
    x = 2,500.18

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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.