Home / 2,835.81-3,913.52-1,656.86

Finding the Fourth Proportional to 2,835.81, 3,913.52 and 1,656.86

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Solution

The fourth proportional to 2,835.81, 3,913.52 and 1,656.86 is: 2,286.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.81 : 3,913.52 = 1,656.86 : x
  2. Step 2: Convert to fraction form
    2,835.81/3,913.52 = 1,656.86/x
  3. Step 3: Cross multiply
    2,835.81x = 3,913.52 × 1,656.86
  4. Step 4: Simplify right side
    2,835.81x = 6,484,126.90
  5. Step 5: Solve for x
    x = 6,484,126.90/2,835.81
  6. Step 6: Final answer
    x = 2,286.52

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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.