Home / 2,058.58-2,840.40-1,219.30

Finding the Fourth Proportional to 2,058.58, 2,840.40 and 1,219.30

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Solution

The fourth proportional to 2,058.58, 2,840.40 and 1,219.30 is: 1,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.58 : 2,840.40 = 1,219.30 : x
  2. Step 2: Convert to fraction form
    2,058.58/2,840.40 = 1,219.30/x
  3. Step 3: Cross multiply
    2,058.58x = 2,840.40 × 1,219.30
  4. Step 4: Simplify right side
    2,058.58x = 3,463,299.72
  5. Step 5: Solve for x
    x = 3,463,299.72/2,058.58
  6. Step 6: Final answer
    x = 1,682.37

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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.