Home / 3,403.76-4,697.10-1,911.66

Finding the Fourth Proportional to 3,403.76, 4,697.10 and 1,911.66

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Solution

The fourth proportional to 3,403.76, 4,697.10 and 1,911.66 is: 2,638.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.76 : 4,697.10 = 1,911.66 : x
  2. Step 2: Convert to fraction form
    3,403.76/4,697.10 = 1,911.66/x
  3. Step 3: Cross multiply
    3,403.76x = 4,697.10 × 1,911.66
  4. Step 4: Simplify right side
    3,403.76x = 8,979,258.19
  5. Step 5: Solve for x
    x = 8,979,258.19/3,403.76
  6. Step 6: Final answer
    x = 2,638.04

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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.