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Finding the Fourth Proportional to 1,813.70, 2,704.64 and 1,798.07

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Solution

The fourth proportional to 1,813.70, 2,704.64 and 1,798.07 is: 2,681.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.70 : 2,704.64 = 1,798.07 : x
  2. Step 2: Convert to fraction form
    1,813.70/2,704.64 = 1,798.07/x
  3. Step 3: Cross multiply
    1,813.70x = 2,704.64 × 1,798.07
  4. Step 4: Simplify right side
    1,813.70x = 4,863,109.53
  5. Step 5: Solve for x
    x = 4,863,109.53/1,813.70
  6. Step 6: Final answer
    x = 2,681.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.