Home / 2,146.93-3,220.89-914.74

Finding the Fourth Proportional to 2,146.93, 3,220.89 and 914.74

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Solution

The fourth proportional to 2,146.93, 3,220.89 and 914.74 is: 1,372.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.93 : 3,220.89 = 914.74 : x
  2. Step 2: Convert to fraction form
    2,146.93/3,220.89 = 914.74/x
  3. Step 3: Cross multiply
    2,146.93x = 3,220.89 × 914.74
  4. Step 4: Simplify right side
    2,146.93x = 2,946,276.92
  5. Step 5: Solve for x
    x = 2,946,276.92/2,146.93
  6. Step 6: Final answer
    x = 1,372.32

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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.