Home / 1,258.32-1,878.29-1,166.85

Finding the Fourth Proportional to 1,258.32, 1,878.29 and 1,166.85

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Solution

The fourth proportional to 1,258.32, 1,878.29 and 1,166.85 is: 1,741.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.32 : 1,878.29 = 1,166.85 : x
  2. Step 2: Convert to fraction form
    1,258.32/1,878.29 = 1,166.85/x
  3. Step 3: Cross multiply
    1,258.32x = 1,878.29 × 1,166.85
  4. Step 4: Simplify right side
    1,258.32x = 2,191,669.81
  5. Step 5: Solve for x
    x = 2,191,669.81/1,258.32
  6. Step 6: Final answer
    x = 1,741.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.