Home / 2,929.62-4,364.84-2,790.30

Finding the Fourth Proportional to 2,929.62, 4,364.84 and 2,790.30

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Solution

The fourth proportional to 2,929.62, 4,364.84 and 2,790.30 is: 4,157.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.62 : 4,364.84 = 2,790.30 : x
  2. Step 2: Convert to fraction form
    2,929.62/4,364.84 = 2,790.30/x
  3. Step 3: Cross multiply
    2,929.62x = 4,364.84 × 2,790.30
  4. Step 4: Simplify right side
    2,929.62x = 12,179,220.03
  5. Step 5: Solve for x
    x = 12,179,220.03/2,929.62
  6. Step 6: Final answer
    x = 4,157.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.