Home / 1,544.23-2,130.87-881.02

Finding the Fourth Proportional to 1,544.23, 2,130.87 and 881.02

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Solution

The fourth proportional to 1,544.23, 2,130.87 and 881.02 is: 1,215.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.23 : 2,130.87 = 881.02 : x
  2. Step 2: Convert to fraction form
    1,544.23/2,130.87 = 881.02/x
  3. Step 3: Cross multiply
    1,544.23x = 2,130.87 × 881.02
  4. Step 4: Simplify right side
    1,544.23x = 1,877,339.09
  5. Step 5: Solve for x
    x = 1,877,339.09/1,544.23
  6. Step 6: Final answer
    x = 1,215.71

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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.