Home / 1,287.34-1,928.58-997.36

Finding the Fourth Proportional to 1,287.34, 1,928.58 and 997.36

Calculator

Solution

The fourth proportional to 1,287.34, 1,928.58 and 997.36 is: 1,494.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287.34 : 1,928.58 = 997.36 : x
  2. Step 2: Convert to fraction form
    1,287.34/1,928.58 = 997.36/x
  3. Step 3: Cross multiply
    1,287.34x = 1,928.58 × 997.36
  4. Step 4: Simplify right side
    1,287.34x = 1,923,488.55
  5. Step 5: Solve for x
    x = 1,923,488.55/1,287.34
  6. Step 6: Final answer
    x = 1,494.16

Related Problems

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.