Home / 2,922.64-4,401.10-2,106.57

Finding the Fourth Proportional to 2,922.64, 4,401.10 and 2,106.57

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Solution

The fourth proportional to 2,922.64, 4,401.10 and 2,106.57 is: 3,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.64 : 4,401.10 = 2,106.57 : x
  2. Step 2: Convert to fraction form
    2,922.64/4,401.10 = 2,106.57/x
  3. Step 3: Cross multiply
    2,922.64x = 4,401.10 × 2,106.57
  4. Step 4: Simplify right side
    2,922.64x = 9,271,225.23
  5. Step 5: Solve for x
    x = 9,271,225.23/2,922.64
  6. Step 6: Final answer
    x = 3,172.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.