Home / 1,434.32-2,151.68-460.19

Finding the Fourth Proportional to 1,434.32, 2,151.68 and 460.19

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Solution

The fourth proportional to 1,434.32, 2,151.68 and 460.19 is: 690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.32 : 2,151.68 = 460.19 : x
  2. Step 2: Convert to fraction form
    1,434.32/2,151.68 = 460.19/x
  3. Step 3: Cross multiply
    1,434.32x = 2,151.68 × 460.19
  4. Step 4: Simplify right side
    1,434.32x = 990,181.62
  5. Step 5: Solve for x
    x = 990,181.62/1,434.32
  6. Step 6: Final answer
    x = 690.35

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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.