Home / 1,112.86-1,538.76-974.62

Finding the Fourth Proportional to 1,112.86, 1,538.76 and 974.62

Calculator

Solution

The fourth proportional to 1,112.86, 1,538.76 and 974.62 is: 1,347.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.86 : 1,538.76 = 974.62 : x
  2. Step 2: Convert to fraction form
    1,112.86/1,538.76 = 974.62/x
  3. Step 3: Cross multiply
    1,112.86x = 1,538.76 × 974.62
  4. Step 4: Simplify right side
    1,112.86x = 1,499,706.27
  5. Step 5: Solve for x
    x = 1,499,706.27/1,112.86
  6. Step 6: Final answer
    x = 1,347.61

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.