Home / 1,164.47-1,606.97-640.50

Finding the Fourth Proportional to 1,164.47, 1,606.97 and 640.50

Calculator

Solution

The fourth proportional to 1,164.47, 1,606.97 and 640.50 is: 883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.47 : 1,606.97 = 640.50 : x
  2. Step 2: Convert to fraction form
    1,164.47/1,606.97 = 640.50/x
  3. Step 3: Cross multiply
    1,164.47x = 1,606.97 × 640.50
  4. Step 4: Simplify right side
    1,164.47x = 1,029,265.89
  5. Step 5: Solve for x
    x = 1,029,265.89/1,164.47
  6. Step 6: Final answer
    x = 883.89

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.