Home / 1,486.75-2,232.44-1,421.02

Finding the Fourth Proportional to 1,486.75, 2,232.44 and 1,421.02

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Solution

The fourth proportional to 1,486.75, 2,232.44 and 1,421.02 is: 2,133.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.75 : 2,232.44 = 1,421.02 : x
  2. Step 2: Convert to fraction form
    1,486.75/2,232.44 = 1,421.02/x
  3. Step 3: Cross multiply
    1,486.75x = 2,232.44 × 1,421.02
  4. Step 4: Simplify right side
    1,486.75x = 3,172,341.89
  5. Step 5: Solve for x
    x = 3,172,341.89/1,486.75
  6. Step 6: Final answer
    x = 2,133.74

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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.