Home / 3,081.02-4,620.58-889.16

Finding the Fourth Proportional to 3,081.02, 4,620.58 and 889.16

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Solution

The fourth proportional to 3,081.02, 4,620.58 and 889.16 is: 1,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.02 : 4,620.58 = 889.16 : x
  2. Step 2: Convert to fraction form
    3,081.02/4,620.58 = 889.16/x
  3. Step 3: Cross multiply
    3,081.02x = 4,620.58 × 889.16
  4. Step 4: Simplify right side
    3,081.02x = 4,108,434.91
  5. Step 5: Solve for x
    x = 4,108,434.91/3,081.02
  6. Step 6: Final answer
    x = 1,333.47

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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.