Home / 2,080.40-2,858.14-1,686.24

Finding the Fourth Proportional to 2,080.40, 2,858.14 and 1,686.24

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Solution

The fourth proportional to 2,080.40, 2,858.14 and 1,686.24 is: 2,316.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.40 : 2,858.14 = 1,686.24 : x
  2. Step 2: Convert to fraction form
    2,080.40/2,858.14 = 1,686.24/x
  3. Step 3: Cross multiply
    2,080.40x = 2,858.14 × 1,686.24
  4. Step 4: Simplify right side
    2,080.40x = 4,819,509.99
  5. Step 5: Solve for x
    x = 4,819,509.99/2,080.40
  6. Step 6: Final answer
    x = 2,316.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.