Home / 6,445.08-8,892.78-4,090.20

Finding the Fourth Proportional to 6,445.08, 8,892.78 and 4,090.20

Calculator

Solution

The fourth proportional to 6,445.08, 8,892.78 and 4,090.20 is: 5,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.08 : 8,892.78 = 4,090.20 : x
  2. Step 2: Convert to fraction form
    6,445.08/8,892.78 = 4,090.20/x
  3. Step 3: Cross multiply
    6,445.08x = 8,892.78 × 4,090.20
  4. Step 4: Simplify right side
    6,445.08x = 36,373,248.76
  5. Step 5: Solve for x
    x = 36,373,248.76/6,445.08
  6. Step 6: Final answer
    x = 5,643.57

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.