Home / 2,158.20-3,235.68-924.30

Finding the Fourth Proportional to 2,158.20, 3,235.68 and 924.30

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Solution

The fourth proportional to 2,158.20, 3,235.68 and 924.30 is: 1,385.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.20 : 3,235.68 = 924.30 : x
  2. Step 2: Convert to fraction form
    2,158.20/3,235.68 = 924.30/x
  3. Step 3: Cross multiply
    2,158.20x = 3,235.68 × 924.30
  4. Step 4: Simplify right side
    2,158.20x = 2,990,739.02
  5. Step 5: Solve for x
    x = 2,990,739.02/2,158.20
  6. Step 6: Final answer
    x = 1,385.76

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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.