Home / 2,637.64-3,636.65-1,928.91

Finding the Fourth Proportional to 2,637.64, 3,636.65 and 1,928.91

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Solution

The fourth proportional to 2,637.64, 3,636.65 and 1,928.91 is: 2,659.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.64 : 3,636.65 = 1,928.91 : x
  2. Step 2: Convert to fraction form
    2,637.64/3,636.65 = 1,928.91/x
  3. Step 3: Cross multiply
    2,637.64x = 3,636.65 × 1,928.91
  4. Step 4: Simplify right side
    2,637.64x = 7,014,778.16
  5. Step 5: Solve for x
    x = 7,014,778.16/2,637.64
  6. Step 6: Final answer
    x = 2,659.49

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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.