Home / 1,406.19-2,112.53-1,017.39

Finding the Fourth Proportional to 1,406.19, 2,112.53 and 1,017.39

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Solution

The fourth proportional to 1,406.19, 2,112.53 and 1,017.39 is: 1,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.19 : 2,112.53 = 1,017.39 : x
  2. Step 2: Convert to fraction form
    1,406.19/2,112.53 = 1,017.39/x
  3. Step 3: Cross multiply
    1,406.19x = 2,112.53 × 1,017.39
  4. Step 4: Simplify right side
    1,406.19x = 2,149,261.81
  5. Step 5: Solve for x
    x = 2,149,261.81/1,406.19
  6. Step 6: Final answer
    x = 1,528.43

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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.