Home / 2,848.96-3,931.80-1,669.78

Finding the Fourth Proportional to 2,848.96, 3,931.80 and 1,669.78

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Solution

The fourth proportional to 2,848.96, 3,931.80 and 1,669.78 is: 2,304.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.96 : 3,931.80 = 1,669.78 : x
  2. Step 2: Convert to fraction form
    2,848.96/3,931.80 = 1,669.78/x
  3. Step 3: Cross multiply
    2,848.96x = 3,931.80 × 1,669.78
  4. Step 4: Simplify right side
    2,848.96x = 6,565,241.00
  5. Step 5: Solve for x
    x = 6,565,241.00/2,848.96
  6. Step 6: Final answer
    x = 2,304.43

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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.