Home / 1,674.72-2,311.08-928.66

Finding the Fourth Proportional to 1,674.72, 2,311.08 and 928.66

Calculator

Solution

The fourth proportional to 1,674.72, 2,311.08 and 928.66 is: 1,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.72 : 2,311.08 = 928.66 : x
  2. Step 2: Convert to fraction form
    1,674.72/2,311.08 = 928.66/x
  3. Step 3: Cross multiply
    1,674.72x = 2,311.08 × 928.66
  4. Step 4: Simplify right side
    1,674.72x = 2,146,207.55
  5. Step 5: Solve for x
    x = 2,146,207.55/1,674.72
  6. Step 6: Final answer
    x = 1,281.54

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.