Home / 3,368.64-4,638.91-2,621.34

Finding the Fourth Proportional to 3,368.64, 4,638.91 and 2,621.34

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Solution

The fourth proportional to 3,368.64, 4,638.91 and 2,621.34 is: 3,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.64 : 4,638.91 = 2,621.34 : x
  2. Step 2: Convert to fraction form
    3,368.64/4,638.91 = 2,621.34/x
  3. Step 3: Cross multiply
    3,368.64x = 4,638.91 × 2,621.34
  4. Step 4: Simplify right side
    3,368.64x = 12,160,160.34
  5. Step 5: Solve for x
    x = 12,160,160.34/3,368.64
  6. Step 6: Final answer
    x = 3,609.81

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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.