Home / 1,705.92-2,355.35-1,313.88

Finding the Fourth Proportional to 1,705.92, 2,355.35 and 1,313.88

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Solution

The fourth proportional to 1,705.92, 2,355.35 and 1,313.88 is: 1,814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.92 : 2,355.35 = 1,313.88 : x
  2. Step 2: Convert to fraction form
    1,705.92/2,355.35 = 1,313.88/x
  3. Step 3: Cross multiply
    1,705.92x = 2,355.35 × 1,313.88
  4. Step 4: Simplify right side
    1,705.92x = 3,094,647.26
  5. Step 5: Solve for x
    x = 3,094,647.26/1,705.92
  6. Step 6: Final answer
    x = 1,814.06

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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.