Home / 2,080.12-2,870.46-1,148.68

Finding the Fourth Proportional to 2,080.12, 2,870.46 and 1,148.68

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Solution

The fourth proportional to 2,080.12, 2,870.46 and 1,148.68 is: 1,585.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.12 : 2,870.46 = 1,148.68 : x
  2. Step 2: Convert to fraction form
    2,080.12/2,870.46 = 1,148.68/x
  3. Step 3: Cross multiply
    2,080.12x = 2,870.46 × 1,148.68
  4. Step 4: Simplify right side
    2,080.12x = 3,297,239.99
  5. Step 5: Solve for x
    x = 3,297,239.99/2,080.12
  6. Step 6: Final answer
    x = 1,585.12

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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.