Home / 2,881.92-3,977.60-1,835.20

Finding the Fourth Proportional to 2,881.92, 3,977.60 and 1,835.20

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Solution

The fourth proportional to 2,881.92, 3,977.60 and 1,835.20 is: 2,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.92 : 3,977.60 = 1,835.20 : x
  2. Step 2: Convert to fraction form
    2,881.92/3,977.60 = 1,835.20/x
  3. Step 3: Cross multiply
    2,881.92x = 3,977.60 × 1,835.20
  4. Step 4: Simplify right side
    2,881.92x = 7,299,691.52
  5. Step 5: Solve for x
    x = 7,299,691.52/2,881.92
  6. Step 6: Final answer
    x = 2,532.93

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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.