Home / 5,638.16-7,783.36-3,752.88

Finding the Fourth Proportional to 5,638.16, 7,783.36 and 3,752.88

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Solution

The fourth proportional to 5,638.16, 7,783.36 and 3,752.88 is: 5,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.16 : 7,783.36 = 3,752.88 : x
  2. Step 2: Convert to fraction form
    5,638.16/7,783.36 = 3,752.88/x
  3. Step 3: Cross multiply
    5,638.16x = 7,783.36 × 3,752.88
  4. Step 4: Simplify right side
    5,638.16x = 29,210,016.08
  5. Step 5: Solve for x
    x = 29,210,016.08/5,638.16
  6. Step 6: Final answer
    x = 5,180.77

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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.