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Finding the Fourth Proportional to 1,719.65, 2,578.65 and 794.93

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Solution

The fourth proportional to 1,719.65, 2,578.65 and 794.93 is: 1,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.65 : 2,578.65 = 794.93 : x
  2. Step 2: Convert to fraction form
    1,719.65/2,578.65 = 794.93/x
  3. Step 3: Cross multiply
    1,719.65x = 2,578.65 × 794.93
  4. Step 4: Simplify right side
    1,719.65x = 2,049,846.24
  5. Step 5: Solve for x
    x = 2,049,846.24/1,719.65
  6. Step 6: Final answer
    x = 1,192.01

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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.