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Finding the Fourth Proportional to 1,792.93, 2,688.47 and 804.90

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Solution

The fourth proportional to 1,792.93, 2,688.47 and 804.90 is: 1,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.93 : 2,688.47 = 804.90 : x
  2. Step 2: Convert to fraction form
    1,792.93/2,688.47 = 804.90/x
  3. Step 3: Cross multiply
    1,792.93x = 2,688.47 × 804.90
  4. Step 4: Simplify right side
    1,792.93x = 2,163,936.06
  5. Step 5: Solve for x
    x = 2,163,936.06/1,792.93
  6. Step 6: Final answer
    x = 1,206.93

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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.