Home / 3,113.64-4,295.63-1,994.40

Finding the Fourth Proportional to 3,113.64, 4,295.63 and 1,994.40

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Solution

The fourth proportional to 3,113.64, 4,295.63 and 1,994.40 is: 2,751.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.64 : 4,295.63 = 1,994.40 : x
  2. Step 2: Convert to fraction form
    3,113.64/4,295.63 = 1,994.40/x
  3. Step 3: Cross multiply
    3,113.64x = 4,295.63 × 1,994.40
  4. Step 4: Simplify right side
    3,113.64x = 8,567,209.46
  5. Step 5: Solve for x
    x = 8,567,209.46/3,113.64
  6. Step 6: Final answer
    x = 2,751.51

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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.