Home / 2,080.37-3,120.15-619.19

Finding the Fourth Proportional to 2,080.37, 3,120.15 and 619.19

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Solution

The fourth proportional to 2,080.37, 3,120.15 and 619.19 is: 928.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.37 : 3,120.15 = 619.19 : x
  2. Step 2: Convert to fraction form
    2,080.37/3,120.15 = 619.19/x
  3. Step 3: Cross multiply
    2,080.37x = 3,120.15 × 619.19
  4. Step 4: Simplify right side
    2,080.37x = 1,931,950.08
  5. Step 5: Solve for x
    x = 1,931,950.08/2,080.37
  6. Step 6: Final answer
    x = 928.66

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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.