Home / 3,058.70-4,220.96-1,800.50

Finding the Fourth Proportional to 3,058.70, 4,220.96 and 1,800.50

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Solution

The fourth proportional to 3,058.70, 4,220.96 and 1,800.50 is: 2,484.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.70 : 4,220.96 = 1,800.50 : x
  2. Step 2: Convert to fraction form
    3,058.70/4,220.96 = 1,800.50/x
  3. Step 3: Cross multiply
    3,058.70x = 4,220.96 × 1,800.50
  4. Step 4: Simplify right side
    3,058.70x = 7,599,808.37
  5. Step 5: Solve for x
    x = 7,599,808.37/3,058.70
  6. Step 6: Final answer
    x = 2,484.66

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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.