Home / 2,848.64-3,931.52-1,729.60

Finding the Fourth Proportional to 2,848.64, 3,931.52 and 1,729.60

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Solution

The fourth proportional to 2,848.64, 3,931.52 and 1,729.60 is: 2,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.64 : 3,931.52 = 1,729.60 : x
  2. Step 2: Convert to fraction form
    2,848.64/3,931.52 = 1,729.60/x
  3. Step 3: Cross multiply
    2,848.64x = 3,931.52 × 1,729.60
  4. Step 4: Simplify right side
    2,848.64x = 6,799,956.99
  5. Step 5: Solve for x
    x = 6,799,956.99/2,848.64
  6. Step 6: Final answer
    x = 2,387.09

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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.