Home / 2,152.05-2,968.97-1,561.29

Finding the Fourth Proportional to 2,152.05, 2,968.97 and 1,561.29

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Solution

The fourth proportional to 2,152.05, 2,968.97 and 1,561.29 is: 2,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.05 : 2,968.97 = 1,561.29 : x
  2. Step 2: Convert to fraction form
    2,152.05/2,968.97 = 1,561.29/x
  3. Step 3: Cross multiply
    2,152.05x = 2,968.97 × 1,561.29
  4. Step 4: Simplify right side
    2,152.05x = 4,635,415.36
  5. Step 5: Solve for x
    x = 4,635,415.36/2,152.05
  6. Step 6: Final answer
    x = 2,153.95

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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.