Home / 2,748.40-3,792.80-1,569.50

Finding the Fourth Proportional to 2,748.40, 3,792.80 and 1,569.50

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Solution

The fourth proportional to 2,748.40, 3,792.80 and 1,569.50 is: 2,165.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.40 : 3,792.80 = 1,569.50 : x
  2. Step 2: Convert to fraction form
    2,748.40/3,792.80 = 1,569.50/x
  3. Step 3: Cross multiply
    2,748.40x = 3,792.80 × 1,569.50
  4. Step 4: Simplify right side
    2,748.40x = 5,952,799.60
  5. Step 5: Solve for x
    x = 5,952,799.60/2,748.40
  6. Step 6: Final answer
    x = 2,165.91

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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.