Home / 1,135.54-1,566.86-715.16

Finding the Fourth Proportional to 1,135.54, 1,566.86 and 715.16

Calculator

Solution

The fourth proportional to 1,135.54, 1,566.86 and 715.16 is: 986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.54 : 1,566.86 = 715.16 : x
  2. Step 2: Convert to fraction form
    1,135.54/1,566.86 = 715.16/x
  3. Step 3: Cross multiply
    1,135.54x = 1,566.86 × 715.16
  4. Step 4: Simplify right side
    1,135.54x = 1,120,555.60
  5. Step 5: Solve for x
    x = 1,120,555.60/1,135.54
  6. Step 6: Final answer
    x = 986.80

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.