Home / 720.98-1,075.76-651.86

Finding the Fourth Proportional to 720.98, 1,075.76 and 651.86

Calculator

Solution

The fourth proportional to 720.98, 1,075.76 and 651.86 is: 972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    720.98 : 1,075.76 = 651.86 : x
  2. Step 2: Convert to fraction form
    720.98/1,075.76 = 651.86/x
  3. Step 3: Cross multiply
    720.98x = 1,075.76 × 651.86
  4. Step 4: Simplify right side
    720.98x = 701,244.91
  5. Step 5: Solve for x
    x = 701,244.91/720.98
  6. Step 6: Final answer
    x = 972.63

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.