Home / 1,818.51-2,511.32-1,554.99

Finding the Fourth Proportional to 1,818.51, 2,511.32 and 1,554.99

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Solution

The fourth proportional to 1,818.51, 2,511.32 and 1,554.99 is: 2,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.51 : 2,511.32 = 1,554.99 : x
  2. Step 2: Convert to fraction form
    1,818.51/2,511.32 = 1,554.99/x
  3. Step 3: Cross multiply
    1,818.51x = 2,511.32 × 1,554.99
  4. Step 4: Simplify right side
    1,818.51x = 3,905,069.71
  5. Step 5: Solve for x
    x = 3,905,069.71/1,818.51
  6. Step 6: Final answer
    x = 2,147.40

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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.