Home / 3,979.47-5,968.80-1,058.07

Finding the Fourth Proportional to 3,979.47, 5,968.80 and 1,058.07

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Solution

The fourth proportional to 3,979.47, 5,968.80 and 1,058.07 is: 1,587.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.47 : 5,968.80 = 1,058.07 : x
  2. Step 2: Convert to fraction form
    3,979.47/5,968.80 = 1,058.07/x
  3. Step 3: Cross multiply
    3,979.47x = 5,968.80 × 1,058.07
  4. Step 4: Simplify right side
    3,979.47x = 6,315,408.22
  5. Step 5: Solve for x
    x = 6,315,408.22/3,979.47
  6. Step 6: Final answer
    x = 1,587.00

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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.