Home / 1,945.10-2,928.26-1,772.91

Finding the Fourth Proportional to 1,945.10, 2,928.26 and 1,772.91

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Solution

The fourth proportional to 1,945.10, 2,928.26 and 1,772.91 is: 2,669.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.10 : 2,928.26 = 1,772.91 : x
  2. Step 2: Convert to fraction form
    1,945.10/2,928.26 = 1,772.91/x
  3. Step 3: Cross multiply
    1,945.10x = 2,928.26 × 1,772.91
  4. Step 4: Simplify right side
    1,945.10x = 5,191,532.57
  5. Step 5: Solve for x
    x = 5,191,532.57/1,945.10
  6. Step 6: Final answer
    x = 2,669.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.