Home / 3,113.67-4,296.47-1,994.72

Finding the Fourth Proportional to 3,113.67, 4,296.47 and 1,994.72

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Solution

The fourth proportional to 3,113.67, 4,296.47 and 1,994.72 is: 2,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.67 : 4,296.47 = 1,994.72 : x
  2. Step 2: Convert to fraction form
    3,113.67/4,296.47 = 1,994.72/x
  3. Step 3: Cross multiply
    3,113.67x = 4,296.47 × 1,994.72
  4. Step 4: Simplify right side
    3,113.67x = 8,570,223.18
  5. Step 5: Solve for x
    x = 8,570,223.18/3,113.67
  6. Step 6: Final answer
    x = 2,752.45

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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.