Home / 1,427.02-2,141.74-561.94

Finding the Fourth Proportional to 1,427.02, 2,141.74 and 561.94

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Solution

The fourth proportional to 1,427.02, 2,141.74 and 561.94 is: 843.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.02 : 2,141.74 = 561.94 : x
  2. Step 2: Convert to fraction form
    1,427.02/2,141.74 = 561.94/x
  3. Step 3: Cross multiply
    1,427.02x = 2,141.74 × 561.94
  4. Step 4: Simplify right side
    1,427.02x = 1,203,524.72
  5. Step 5: Solve for x
    x = 1,203,524.72/1,427.02
  6. Step 6: Final answer
    x = 843.38

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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.