Home / 1,585.21-2,380.55-1,341.90

Finding the Fourth Proportional to 1,585.21, 2,380.55 and 1,341.90

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Solution

The fourth proportional to 1,585.21, 2,380.55 and 1,341.90 is: 2,015.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.21 : 2,380.55 = 1,341.90 : x
  2. Step 2: Convert to fraction form
    1,585.21/2,380.55 = 1,341.90/x
  3. Step 3: Cross multiply
    1,585.21x = 2,380.55 × 1,341.90
  4. Step 4: Simplify right side
    1,585.21x = 3,194,460.05
  5. Step 5: Solve for x
    x = 3,194,460.05/1,585.21
  6. Step 6: Final answer
    x = 2,015.17

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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.