Home / 5,091.28-7,637.54-1,803.72

Finding the Fourth Proportional to 5,091.28, 7,637.54 and 1,803.72

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Solution

The fourth proportional to 5,091.28, 7,637.54 and 1,803.72 is: 2,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.28 : 7,637.54 = 1,803.72 : x
  2. Step 2: Convert to fraction form
    5,091.28/7,637.54 = 1,803.72/x
  3. Step 3: Cross multiply
    5,091.28x = 7,637.54 × 1,803.72
  4. Step 4: Simplify right side
    5,091.28x = 13,775,983.65
  5. Step 5: Solve for x
    x = 13,775,983.65/5,091.28
  6. Step 6: Final answer
    x = 2,705.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.