Home / 2,431.40-3,642.06-1,133.60

Finding the Fourth Proportional to 2,431.40, 3,642.06 and 1,133.60

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Solution

The fourth proportional to 2,431.40, 3,642.06 and 1,133.60 is: 1,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.40 : 3,642.06 = 1,133.60 : x
  2. Step 2: Convert to fraction form
    2,431.40/3,642.06 = 1,133.60/x
  3. Step 3: Cross multiply
    2,431.40x = 3,642.06 × 1,133.60
  4. Step 4: Simplify right side
    2,431.40x = 4,128,639.22
  5. Step 5: Solve for x
    x = 4,128,639.22/2,431.40
  6. Step 6: Final answer
    x = 1,698.05

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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.