Home / 1,603.85-2,214.57-1,230.24

Finding the Fourth Proportional to 1,603.85, 2,214.57 and 1,230.24

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Solution

The fourth proportional to 1,603.85, 2,214.57 and 1,230.24 is: 1,698.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.85 : 2,214.57 = 1,230.24 : x
  2. Step 2: Convert to fraction form
    1,603.85/2,214.57 = 1,230.24/x
  3. Step 3: Cross multiply
    1,603.85x = 2,214.57 × 1,230.24
  4. Step 4: Simplify right side
    1,603.85x = 2,724,442.68
  5. Step 5: Solve for x
    x = 2,724,442.68/1,603.85
  6. Step 6: Final answer
    x = 1,698.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.