Home / 4,385.64-6,581.40-1,920.60

Finding the Fourth Proportional to 4,385.64, 6,581.40 and 1,920.60

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Solution

The fourth proportional to 4,385.64, 6,581.40 and 1,920.60 is: 2,882.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385.64 : 6,581.40 = 1,920.60 : x
  2. Step 2: Convert to fraction form
    4,385.64/6,581.40 = 1,920.60/x
  3. Step 3: Cross multiply
    4,385.64x = 6,581.40 × 1,920.60
  4. Step 4: Simplify right side
    4,385.64x = 12,640,236.84
  5. Step 5: Solve for x
    x = 12,640,236.84/4,385.64
  6. Step 6: Final answer
    x = 2,882.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.