Home / 1,435.24-2,150.44-653.96

Finding the Fourth Proportional to 1,435.24, 2,150.44 and 653.96

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Solution

The fourth proportional to 1,435.24, 2,150.44 and 653.96 is: 979.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.24 : 2,150.44 = 653.96 : x
  2. Step 2: Convert to fraction form
    1,435.24/2,150.44 = 653.96/x
  3. Step 3: Cross multiply
    1,435.24x = 2,150.44 × 653.96
  4. Step 4: Simplify right side
    1,435.24x = 1,406,301.74
  5. Step 5: Solve for x
    x = 1,406,301.74/1,435.24
  6. Step 6: Final answer
    x = 979.84

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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.