Home / 2,881.60-3,977.28-1,703.20

Finding the Fourth Proportional to 2,881.60, 3,977.28 and 1,703.20

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Solution

The fourth proportional to 2,881.60, 3,977.28 and 1,703.20 is: 2,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.60 : 3,977.28 = 1,703.20 : x
  2. Step 2: Convert to fraction form
    2,881.60/3,977.28 = 1,703.20/x
  3. Step 3: Cross multiply
    2,881.60x = 3,977.28 × 1,703.20
  4. Step 4: Simplify right side
    2,881.60x = 6,774,103.30
  5. Step 5: Solve for x
    x = 6,774,103.30/2,881.60
  6. Step 6: Final answer
    x = 2,350.81

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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.