Home / 1,637.50-2,457.34-771.88

Finding the Fourth Proportional to 1,637.50, 2,457.34 and 771.88

Calculator

Solution

The fourth proportional to 1,637.50, 2,457.34 and 771.88 is: 1,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.50 : 2,457.34 = 771.88 : x
  2. Step 2: Convert to fraction form
    1,637.50/2,457.34 = 771.88/x
  3. Step 3: Cross multiply
    1,637.50x = 2,457.34 × 771.88
  4. Step 4: Simplify right side
    1,637.50x = 1,896,771.60
  5. Step 5: Solve for x
    x = 1,896,771.60/1,637.50
  6. Step 6: Final answer
    x = 1,158.33

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.