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Finding the Fourth Proportional to 1,282.50, 1,925.55 and 794.07

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Solution

The fourth proportional to 1,282.50, 1,925.55 and 794.07 is: 1,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.50 : 1,925.55 = 794.07 : x
  2. Step 2: Convert to fraction form
    1,282.50/1,925.55 = 794.07/x
  3. Step 3: Cross multiply
    1,282.50x = 1,925.55 × 794.07
  4. Step 4: Simplify right side
    1,282.50x = 1,529,021.49
  5. Step 5: Solve for x
    x = 1,529,021.49/1,282.50
  6. Step 6: Final answer
    x = 1,192.22

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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.