Home / 1,434.45-2,150.39-654.04

Finding the Fourth Proportional to 1,434.45, 2,150.39 and 654.04

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Solution

The fourth proportional to 1,434.45, 2,150.39 and 654.04 is: 980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.45 : 2,150.39 = 654.04 : x
  2. Step 2: Convert to fraction form
    1,434.45/2,150.39 = 654.04/x
  3. Step 3: Cross multiply
    1,434.45x = 2,150.39 × 654.04
  4. Step 4: Simplify right side
    1,434.45x = 1,406,441.08
  5. Step 5: Solve for x
    x = 1,406,441.08/1,434.45
  6. Step 6: Final answer
    x = 980.47

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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.