Home / 1,429.19-2,144.10-608.16

Finding the Fourth Proportional to 1,429.19, 2,144.10 and 608.16

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Solution

The fourth proportional to 1,429.19, 2,144.10 and 608.16 is: 912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.19 : 2,144.10 = 608.16 : x
  2. Step 2: Convert to fraction form
    1,429.19/2,144.10 = 608.16/x
  3. Step 3: Cross multiply
    1,429.19x = 2,144.10 × 608.16
  4. Step 4: Simplify right side
    1,429.19x = 1,303,955.86
  5. Step 5: Solve for x
    x = 1,303,955.86/1,429.19
  6. Step 6: Final answer
    x = 912.37

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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.