Home / 1,886.96-2,605.08-1,258.37

Finding the Fourth Proportional to 1,886.96, 2,605.08 and 1,258.37

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Solution

The fourth proportional to 1,886.96, 2,605.08 and 1,258.37 is: 1,737.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.96 : 2,605.08 = 1,258.37 : x
  2. Step 2: Convert to fraction form
    1,886.96/2,605.08 = 1,258.37/x
  3. Step 3: Cross multiply
    1,886.96x = 2,605.08 × 1,258.37
  4. Step 4: Simplify right side
    1,886.96x = 3,278,141.49
  5. Step 5: Solve for x
    x = 3,278,141.49/1,886.96
  6. Step 6: Final answer
    x = 1,737.27

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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.