Home / 2,071.22-2,858.30-1,127.03

Finding the Fourth Proportional to 2,071.22, 2,858.30 and 1,127.03

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Solution

The fourth proportional to 2,071.22, 2,858.30 and 1,127.03 is: 1,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.22 : 2,858.30 = 1,127.03 : x
  2. Step 2: Convert to fraction form
    2,071.22/2,858.30 = 1,127.03/x
  3. Step 3: Cross multiply
    2,071.22x = 2,858.30 × 1,127.03
  4. Step 4: Simplify right side
    2,071.22x = 3,221,369.92
  5. Step 5: Solve for x
    x = 3,221,369.92/2,071.22
  6. Step 6: Final answer
    x = 1,555.30

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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.