Home / 3,370.85-4,649.93-2,111.63

Finding the Fourth Proportional to 3,370.85, 4,649.93 and 2,111.63

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Solution

The fourth proportional to 3,370.85, 4,649.93 and 2,111.63 is: 2,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.85 : 4,649.93 = 2,111.63 : x
  2. Step 2: Convert to fraction form
    3,370.85/4,649.93 = 2,111.63/x
  3. Step 3: Cross multiply
    3,370.85x = 4,649.93 × 2,111.63
  4. Step 4: Simplify right side
    3,370.85x = 9,818,931.69
  5. Step 5: Solve for x
    x = 9,818,931.69/3,370.85
  6. Step 6: Final answer
    x = 2,912.90

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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.