Home / 2,058.22-2,840.39-1,218.62

Finding the Fourth Proportional to 2,058.22, 2,840.39 and 1,218.62

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Solution

The fourth proportional to 2,058.22, 2,840.39 and 1,218.62 is: 1,681.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.22 : 2,840.39 = 1,218.62 : x
  2. Step 2: Convert to fraction form
    2,058.22/2,840.39 = 1,218.62/x
  3. Step 3: Cross multiply
    2,058.22x = 2,840.39 × 1,218.62
  4. Step 4: Simplify right side
    2,058.22x = 3,461,335.77
  5. Step 5: Solve for x
    x = 3,461,335.77/2,058.22
  6. Step 6: Final answer
    x = 1,681.72

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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.