Home / 2,080.13-2,870.60-1,148.63

Finding the Fourth Proportional to 2,080.13, 2,870.60 and 1,148.63

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Solution

The fourth proportional to 2,080.13, 2,870.60 and 1,148.63 is: 1,585.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.13 : 2,870.60 = 1,148.63 : x
  2. Step 2: Convert to fraction form
    2,080.13/2,870.60 = 1,148.63/x
  3. Step 3: Cross multiply
    2,080.13x = 2,870.60 × 1,148.63
  4. Step 4: Simplify right side
    2,080.13x = 3,297,237.18
  5. Step 5: Solve for x
    x = 3,297,237.18/2,080.13
  6. Step 6: Final answer
    x = 1,585.11

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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.