Home / 2,945.34-4,065.97-1,869.16

Finding the Fourth Proportional to 2,945.34, 4,065.97 and 1,869.16

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Solution

The fourth proportional to 2,945.34, 4,065.97 and 1,869.16 is: 2,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.34 : 4,065.97 = 1,869.16 : x
  2. Step 2: Convert to fraction form
    2,945.34/4,065.97 = 1,869.16/x
  3. Step 3: Cross multiply
    2,945.34x = 4,065.97 × 1,869.16
  4. Step 4: Simplify right side
    2,945.34x = 7,599,928.97
  5. Step 5: Solve for x
    x = 7,599,928.97/2,945.34
  6. Step 6: Final answer
    x = 2,580.32

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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.