Home / 2,145.69-2,962.49-1,647.44

Finding the Fourth Proportional to 2,145.69, 2,962.49 and 1,647.44

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Solution

The fourth proportional to 2,145.69, 2,962.49 and 1,647.44 is: 2,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.69 : 2,962.49 = 1,647.44 : x
  2. Step 2: Convert to fraction form
    2,145.69/2,962.49 = 1,647.44/x
  3. Step 3: Cross multiply
    2,145.69x = 2,962.49 × 1,647.44
  4. Step 4: Simplify right side
    2,145.69x = 4,880,523.69
  5. Step 5: Solve for x
    x = 4,880,523.69/2,145.69
  6. Step 6: Final answer
    x = 2,274.57

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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.