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Finding the Fourth Proportional to 1,804.87, 2,488.48 and 1,491.40

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Solution

The fourth proportional to 1,804.87, 2,488.48 and 1,491.40 is: 2,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804.87 : 2,488.48 = 1,491.40 : x
  2. Step 2: Convert to fraction form
    1,804.87/2,488.48 = 1,491.40/x
  3. Step 3: Cross multiply
    1,804.87x = 2,488.48 × 1,491.40
  4. Step 4: Simplify right side
    1,804.87x = 3,711,319.07
  5. Step 5: Solve for x
    x = 3,711,319.07/1,804.87
  6. Step 6: Final answer
    x = 2,056.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.