Home / 1,781.16-2,457.59-1,035.15

Finding the Fourth Proportional to 1,781.16, 2,457.59 and 1,035.15

Calculator

Solution

The fourth proportional to 1,781.16, 2,457.59 and 1,035.15 is: 1,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.16 : 2,457.59 = 1,035.15 : x
  2. Step 2: Convert to fraction form
    1,781.16/2,457.59 = 1,035.15/x
  3. Step 3: Cross multiply
    1,781.16x = 2,457.59 × 1,035.15
  4. Step 4: Simplify right side
    1,781.16x = 2,543,969.11
  5. Step 5: Solve for x
    x = 2,543,969.11/1,781.16
  6. Step 6: Final answer
    x = 1,428.27

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.