Home / 1,808.84-2,710-766.96

Finding the Fourth Proportional to 1,808.84, 2,710 and 766.96

Calculator

Solution

The fourth proportional to 1,808.84, 2,710 and 766.96 is: 1,149.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.84 : 2,710 = 766.96 : x
  2. Step 2: Convert to fraction form
    1,808.84/2,710 = 766.96/x
  3. Step 3: Cross multiply
    1,808.84x = 2,710 × 766.96
  4. Step 4: Simplify right side
    1,808.84x = 2,078,461.60
  5. Step 5: Solve for x
    x = 2,078,461.60/1,808.84
  6. Step 6: Final answer
    x = 1,149.06

Related Problems

Find fourth proportional to 904.42, 1,355 and 383.48
Half scale
Find fourth proportional to 3,617.68, 5,420 and 1,533.92
Double scale
Find fourth proportional to 1,809.84, 2,711.50 and 767.96
Similar ratio
Find fourth proportional to 2,713.26, 4,065 and 1,150.44
1.5x scale

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.