Home / 1,670.36-2,503.56-1,258.16

Finding the Fourth Proportional to 1,670.36, 2,503.56 and 1,258.16

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Solution

The fourth proportional to 1,670.36, 2,503.56 and 1,258.16 is: 1,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.36 : 2,503.56 = 1,258.16 : x
  2. Step 2: Convert to fraction form
    1,670.36/2,503.56 = 1,258.16/x
  3. Step 3: Cross multiply
    1,670.36x = 2,503.56 × 1,258.16
  4. Step 4: Simplify right side
    1,670.36x = 3,149,879.05
  5. Step 5: Solve for x
    x = 3,149,879.05/1,670.36
  6. Step 6: Final answer
    x = 1,885.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.