Home / 1,680.35-2,520.45-1,184.69

Finding the Fourth Proportional to 1,680.35, 2,520.45 and 1,184.69

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Solution

The fourth proportional to 1,680.35, 2,520.45 and 1,184.69 is: 1,776.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.35 : 2,520.45 = 1,184.69 : x
  2. Step 2: Convert to fraction form
    1,680.35/2,520.45 = 1,184.69/x
  3. Step 3: Cross multiply
    1,680.35x = 2,520.45 × 1,184.69
  4. Step 4: Simplify right side
    1,680.35x = 2,985,958.21
  5. Step 5: Solve for x
    x = 2,985,958.21/1,680.35
  6. Step 6: Final answer
    x = 1,776.99

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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.