Home / 1,431.24-2,147.05-444.13

Finding the Fourth Proportional to 1,431.24, 2,147.05 and 444.13

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Solution

The fourth proportional to 1,431.24, 2,147.05 and 444.13 is: 666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.24 : 2,147.05 = 444.13 : x
  2. Step 2: Convert to fraction form
    1,431.24/2,147.05 = 444.13/x
  3. Step 3: Cross multiply
    1,431.24x = 2,147.05 × 444.13
  4. Step 4: Simplify right side
    1,431.24x = 953,569.32
  5. Step 5: Solve for x
    x = 953,569.32/1,431.24
  6. Step 6: Final answer
    x = 666.26

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1.5x scale

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.