Home / 3,037.70-4,190.90-1,918.23

Finding the Fourth Proportional to 3,037.70, 4,190.90 and 1,918.23

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Solution

The fourth proportional to 3,037.70, 4,190.90 and 1,918.23 is: 2,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,037.70 : 4,190.90 = 1,918.23 : x
  2. Step 2: Convert to fraction form
    3,037.70/4,190.90 = 1,918.23/x
  3. Step 3: Cross multiply
    3,037.70x = 4,190.90 × 1,918.23
  4. Step 4: Simplify right side
    3,037.70x = 8,039,100.52
  5. Step 5: Solve for x
    x = 8,039,100.52/3,037.70
  6. Step 6: Final answer
    x = 2,646.45

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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.