Home / 2,712.20-4,058.70-1,848.20

Finding the Fourth Proportional to 2,712.20, 4,058.70 and 1,848.20

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Solution

The fourth proportional to 2,712.20, 4,058.70 and 1,848.20 is: 2,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.20 : 4,058.70 = 1,848.20 : x
  2. Step 2: Convert to fraction form
    2,712.20/4,058.70 = 1,848.20/x
  3. Step 3: Cross multiply
    2,712.20x = 4,058.70 × 1,848.20
  4. Step 4: Simplify right side
    2,712.20x = 7,501,289.34
  5. Step 5: Solve for x
    x = 7,501,289.34/2,712.20
  6. Step 6: Final answer
    x = 2,765.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.