Home / 2,080.13-2,870.75-1,148.81

Finding the Fourth Proportional to 2,080.13, 2,870.75 and 1,148.81

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Solution

The fourth proportional to 2,080.13, 2,870.75 and 1,148.81 is: 1,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.13 : 2,870.75 = 1,148.81 : x
  2. Step 2: Convert to fraction form
    2,080.13/2,870.75 = 1,148.81/x
  3. Step 3: Cross multiply
    2,080.13x = 2,870.75 × 1,148.81
  4. Step 4: Simplify right side
    2,080.13x = 3,297,934.83
  5. Step 5: Solve for x
    x = 3,297,934.83/2,080.13
  6. Step 6: Final answer
    x = 1,585.45

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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.