Home / 2,071.29-2,858.34-1,127.07

Finding the Fourth Proportional to 2,071.29, 2,858.34 and 1,127.07

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Solution

The fourth proportional to 2,071.29, 2,858.34 and 1,127.07 is: 1,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.29 : 2,858.34 = 1,127.07 : x
  2. Step 2: Convert to fraction form
    2,071.29/2,858.34 = 1,127.07/x
  3. Step 3: Cross multiply
    2,071.29x = 2,858.34 × 1,127.07
  4. Step 4: Simplify right side
    2,071.29x = 3,221,549.26
  5. Step 5: Solve for x
    x = 3,221,549.26/2,071.29
  6. Step 6: Final answer
    x = 1,555.33

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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.