Home / 1,563.87-2,157.93-900.66

Finding the Fourth Proportional to 1,563.87, 2,157.93 and 900.66

Calculator

Solution

The fourth proportional to 1,563.87, 2,157.93 and 900.66 is: 1,242.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.87 : 2,157.93 = 900.66 : x
  2. Step 2: Convert to fraction form
    1,563.87/2,157.93 = 900.66/x
  3. Step 3: Cross multiply
    1,563.87x = 2,157.93 × 900.66
  4. Step 4: Simplify right side
    1,563.87x = 1,943,561.23
  5. Step 5: Solve for x
    x = 1,943,561.23/1,563.87
  6. Step 6: Final answer
    x = 1,242.79

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.