Home / 2,922.16-4,376.98-1,821.10

Finding the Fourth Proportional to 2,922.16, 4,376.98 and 1,821.10

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Solution

The fourth proportional to 2,922.16, 4,376.98 and 1,821.10 is: 2,727.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.16 : 4,376.98 = 1,821.10 : x
  2. Step 2: Convert to fraction form
    2,922.16/4,376.98 = 1,821.10/x
  3. Step 3: Cross multiply
    2,922.16x = 4,376.98 × 1,821.10
  4. Step 4: Simplify right side
    2,922.16x = 7,970,918.28
  5. Step 5: Solve for x
    x = 7,970,918.28/2,922.16
  6. Step 6: Final answer
    x = 2,727.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.