Home / 1,814.08-2,722.20-1,386.40

Finding the Fourth Proportional to 1,814.08, 2,722.20 and 1,386.40

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Solution

The fourth proportional to 1,814.08, 2,722.20 and 1,386.40 is: 2,080.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.08 : 2,722.20 = 1,386.40 : x
  2. Step 2: Convert to fraction form
    1,814.08/2,722.20 = 1,386.40/x
  3. Step 3: Cross multiply
    1,814.08x = 2,722.20 × 1,386.40
  4. Step 4: Simplify right side
    1,814.08x = 3,774,058.08
  5. Step 5: Solve for x
    x = 3,774,058.08/1,814.08
  6. Step 6: Final answer
    x = 2,080.43

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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.