Home / 5,058.20-6,980.06-2,820.32

Finding the Fourth Proportional to 5,058.20, 6,980.06 and 2,820.32

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Solution

The fourth proportional to 5,058.20, 6,980.06 and 2,820.32 is: 3,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,058.20 : 6,980.06 = 2,820.32 : x
  2. Step 2: Convert to fraction form
    5,058.20/6,980.06 = 2,820.32/x
  3. Step 3: Cross multiply
    5,058.20x = 6,980.06 × 2,820.32
  4. Step 4: Simplify right side
    5,058.20x = 19,686,002.82
  5. Step 5: Solve for x
    x = 19,686,002.82/5,058.20
  6. Step 6: Final answer
    x = 3,891.90

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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.