Home / 1,451.03-2,001.75-861.35

Finding the Fourth Proportional to 1,451.03, 2,001.75 and 861.35

Calculator

Solution

The fourth proportional to 1,451.03, 2,001.75 and 861.35 is: 1,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.03 : 2,001.75 = 861.35 : x
  2. Step 2: Convert to fraction form
    1,451.03/2,001.75 = 861.35/x
  3. Step 3: Cross multiply
    1,451.03x = 2,001.75 × 861.35
  4. Step 4: Simplify right side
    1,451.03x = 1,724,207.36
  5. Step 5: Solve for x
    x = 1,724,207.36/1,451.03
  6. Step 6: Final answer
    x = 1,188.26

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.