Home / 3,064.09-4,228.12-1,805.05

Finding the Fourth Proportional to 3,064.09, 4,228.12 and 1,805.05

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Solution

The fourth proportional to 3,064.09, 4,228.12 and 1,805.05 is: 2,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,064.09 : 4,228.12 = 1,805.05 : x
  2. Step 2: Convert to fraction form
    3,064.09/4,228.12 = 1,805.05/x
  3. Step 3: Cross multiply
    3,064.09x = 4,228.12 × 1,805.05
  4. Step 4: Simplify right side
    3,064.09x = 7,631,937.84
  5. Step 5: Solve for x
    x = 7,631,937.84/3,064.09
  6. Step 6: Final answer
    x = 2,490.77

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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.