Home / 1,447.02-2,170.74-581.28

Finding the Fourth Proportional to 1,447.02, 2,170.74 and 581.28

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Solution

The fourth proportional to 1,447.02, 2,170.74 and 581.28 is: 872.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.02 : 2,170.74 = 581.28 : x
  2. Step 2: Convert to fraction form
    1,447.02/2,170.74 = 581.28/x
  3. Step 3: Cross multiply
    1,447.02x = 2,170.74 × 581.28
  4. Step 4: Simplify right side
    1,447.02x = 1,261,807.75
  5. Step 5: Solve for x
    x = 1,261,807.75/1,447.02
  6. Step 6: Final answer
    x = 872.00

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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.