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Finding the Fourth Proportional to 1,810.30, 2,711.40 and 1,810.30

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Solution

The fourth proportional to 1,810.30, 2,711.40 and 1,810.30 is: 2,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.30 : 2,711.40 = 1,810.30 : x
  2. Step 2: Convert to fraction form
    1,810.30/2,711.40 = 1,810.30/x
  3. Step 3: Cross multiply
    1,810.30x = 2,711.40 × 1,810.30
  4. Step 4: Simplify right side
    1,810.30x = 4,908,447.42
  5. Step 5: Solve for x
    x = 4,908,447.42/1,810.30
  6. Step 6: Final answer
    x = 2,711.40

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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.