Home / 1,434.39-2,151.60-460.49

Finding the Fourth Proportional to 1,434.39, 2,151.60 and 460.49

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Solution

The fourth proportional to 1,434.39, 2,151.60 and 460.49 is: 690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.39 : 2,151.60 = 460.49 : x
  2. Step 2: Convert to fraction form
    1,434.39/2,151.60 = 460.49/x
  3. Step 3: Cross multiply
    1,434.39x = 2,151.60 × 460.49
  4. Step 4: Simplify right side
    1,434.39x = 990,779.53
  5. Step 5: Solve for x
    x = 990,779.53/1,434.39
  6. Step 6: Final answer
    x = 690.73

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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.