Home / 1,692.54-2,538-718.11

Finding the Fourth Proportional to 1,692.54, 2,538 and 718.11

Calculator

Solution

The fourth proportional to 1,692.54, 2,538 and 718.11 is: 1,076.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.54 : 2,538 = 718.11 : x
  2. Step 2: Convert to fraction form
    1,692.54/2,538 = 718.11/x
  3. Step 3: Cross multiply
    1,692.54x = 2,538 × 718.11
  4. Step 4: Simplify right side
    1,692.54x = 1,822,563.18
  5. Step 5: Solve for x
    x = 1,822,563.18/1,692.54
  6. Step 6: Final answer
    x = 1,076.82

Related Problems

Find fourth proportional to 846.27, 1,269 and 359.06
Half scale
Find fourth proportional to 3,385.08, 5,076 and 1,436.22
Double scale
Find fourth proportional to 1,693.54, 2,539.50 and 719.11
Similar ratio
Find fourth proportional to 2,538.81, 3,807 and 1,077.17
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.