Home / 1,403.64-1,937.04-782.64

Finding the Fourth Proportional to 1,403.64, 1,937.04 and 782.64

Calculator

Solution

The fourth proportional to 1,403.64, 1,937.04 and 782.64 is: 1,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.64 : 1,937.04 = 782.64 : x
  2. Step 2: Convert to fraction form
    1,403.64/1,937.04 = 782.64/x
  3. Step 3: Cross multiply
    1,403.64x = 1,937.04 × 782.64
  4. Step 4: Simplify right side
    1,403.64x = 1,516,004.99
  5. Step 5: Solve for x
    x = 1,516,004.99/1,403.64
  6. Step 6: Final answer
    x = 1,080.05

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.