Home / 1,945.57-2,901.21-1,928.02

Finding the Fourth Proportional to 1,945.57, 2,901.21 and 1,928.02

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Solution

The fourth proportional to 1,945.57, 2,901.21 and 1,928.02 is: 2,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.57 : 2,901.21 = 1,928.02 : x
  2. Step 2: Convert to fraction form
    1,945.57/2,901.21 = 1,928.02/x
  3. Step 3: Cross multiply
    1,945.57x = 2,901.21 × 1,928.02
  4. Step 4: Simplify right side
    1,945.57x = 5,593,581.22
  5. Step 5: Solve for x
    x = 5,593,581.22/1,945.57
  6. Step 6: Final answer
    x = 2,875.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.