Home / 1,471.48-2,207.98-978.23

Finding the Fourth Proportional to 1,471.48, 2,207.98 and 978.23

Calculator

Solution

The fourth proportional to 1,471.48, 2,207.98 and 978.23 is: 1,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.48 : 2,207.98 = 978.23 : x
  2. Step 2: Convert to fraction form
    1,471.48/2,207.98 = 978.23/x
  3. Step 3: Cross multiply
    1,471.48x = 2,207.98 × 978.23
  4. Step 4: Simplify right side
    1,471.48x = 2,159,912.28
  5. Step 5: Solve for x
    x = 2,159,912.28/1,471.48
  6. Step 6: Final answer
    x = 1,467.85

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.