Home / 1,707.40-2,358.48-1,642.60

Finding the Fourth Proportional to 1,707.40, 2,358.48 and 1,642.60

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Solution

The fourth proportional to 1,707.40, 2,358.48 and 1,642.60 is: 2,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.40 : 2,358.48 = 1,642.60 : x
  2. Step 2: Convert to fraction form
    1,707.40/2,358.48 = 1,642.60/x
  3. Step 3: Cross multiply
    1,707.40x = 2,358.48 × 1,642.60
  4. Step 4: Simplify right side
    1,707.40x = 3,874,039.25
  5. Step 5: Solve for x
    x = 3,874,039.25/1,707.40
  6. Step 6: Final answer
    x = 2,268.97

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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.