Home / 3,058.60-4,220.66-1,661.32

Finding the Fourth Proportional to 3,058.60, 4,220.66 and 1,661.32

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Solution

The fourth proportional to 3,058.60, 4,220.66 and 1,661.32 is: 2,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.60 : 4,220.66 = 1,661.32 : x
  2. Step 2: Convert to fraction form
    3,058.60/4,220.66 = 1,661.32/x
  3. Step 3: Cross multiply
    3,058.60x = 4,220.66 × 1,661.32
  4. Step 4: Simplify right side
    3,058.60x = 7,011,866.87
  5. Step 5: Solve for x
    x = 7,011,866.87/3,058.60
  6. Step 6: Final answer
    x = 2,292.51

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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.