Home / 1,346.20-2,017.86-961.24

Finding the Fourth Proportional to 1,346.20, 2,017.86 and 961.24

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Solution

The fourth proportional to 1,346.20, 2,017.86 and 961.24 is: 1,440.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.20 : 2,017.86 = 961.24 : x
  2. Step 2: Convert to fraction form
    1,346.20/2,017.86 = 961.24/x
  3. Step 3: Cross multiply
    1,346.20x = 2,017.86 × 961.24
  4. Step 4: Simplify right side
    1,346.20x = 1,939,647.75
  5. Step 5: Solve for x
    x = 1,939,647.75/1,346.20
  6. Step 6: Final answer
    x = 1,440.83

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1.5x scale

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.