Home / 4,917.60-6,785.52-2,821.32

Finding the Fourth Proportional to 4,917.60, 6,785.52 and 2,821.32

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Solution

The fourth proportional to 4,917.60, 6,785.52 and 2,821.32 is: 3,892.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.60 : 6,785.52 = 2,821.32 : x
  2. Step 2: Convert to fraction form
    4,917.60/6,785.52 = 2,821.32/x
  3. Step 3: Cross multiply
    4,917.60x = 6,785.52 × 2,821.32
  4. Step 4: Simplify right side
    4,917.60x = 19,144,123.29
  5. Step 5: Solve for x
    x = 19,144,123.29/4,917.60
  6. Step 6: Final answer
    x = 3,892.98

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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.