Home / 1,431.35-2,147.13-444.08

Finding the Fourth Proportional to 1,431.35, 2,147.13 and 444.08

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Solution

The fourth proportional to 1,431.35, 2,147.13 and 444.08 is: 666.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.35 : 2,147.13 = 444.08 : x
  2. Step 2: Convert to fraction form
    1,431.35/2,147.13 = 444.08/x
  3. Step 3: Cross multiply
    1,431.35x = 2,147.13 × 444.08
  4. Step 4: Simplify right side
    1,431.35x = 953,504.11
  5. Step 5: Solve for x
    x = 953,504.11/1,431.35
  6. Step 6: Final answer
    x = 666.16

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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.