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Finding the Fourth Proportional to 2,657.92, 3,668.28 and 1,914.32

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Solution

The fourth proportional to 2,657.92, 3,668.28 and 1,914.32 is: 2,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.92 : 3,668.28 = 1,914.32 : x
  2. Step 2: Convert to fraction form
    2,657.92/3,668.28 = 1,914.32/x
  3. Step 3: Cross multiply
    2,657.92x = 3,668.28 × 1,914.32
  4. Step 4: Simplify right side
    2,657.92x = 7,022,261.77
  5. Step 5: Solve for x
    x = 7,022,261.77/2,657.92
  6. Step 6: Final answer
    x = 2,642.01

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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.