Home / 1,544.40-2,315.56-1,313.36

Finding the Fourth Proportional to 1,544.40, 2,315.56 and 1,313.36

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Solution

The fourth proportional to 1,544.40, 2,315.56 and 1,313.36 is: 1,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.40 : 2,315.56 = 1,313.36 : x
  2. Step 2: Convert to fraction form
    1,544.40/2,315.56 = 1,313.36/x
  3. Step 3: Cross multiply
    1,544.40x = 2,315.56 × 1,313.36
  4. Step 4: Simplify right side
    1,544.40x = 3,041,163.88
  5. Step 5: Solve for x
    x = 3,041,163.88/1,544.40
  6. Step 6: Final answer
    x = 1,969.16

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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.