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Finding the Fourth Proportional to 2,799.04, 3,862.80 and 1,557.04

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Solution

The fourth proportional to 2,799.04, 3,862.80 and 1,557.04 is: 2,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.04 : 3,862.80 = 1,557.04 : x
  2. Step 2: Convert to fraction form
    2,799.04/3,862.80 = 1,557.04/x
  3. Step 3: Cross multiply
    2,799.04x = 3,862.80 × 1,557.04
  4. Step 4: Simplify right side
    2,799.04x = 6,014,534.11
  5. Step 5: Solve for x
    x = 6,014,534.11/2,799.04
  6. Step 6: Final answer
    x = 2,148.78

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1.5x scale

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.