Home / 2,561.10-3,842-917.84

Finding the Fourth Proportional to 2,561.10, 3,842 and 917.84

Calculator

Solution

The fourth proportional to 2,561.10, 3,842 and 917.84 is: 1,376.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.10 : 3,842 = 917.84 : x
  2. Step 2: Convert to fraction form
    2,561.10/3,842 = 917.84/x
  3. Step 3: Cross multiply
    2,561.10x = 3,842 × 917.84
  4. Step 4: Simplify right side
    2,561.10x = 3,526,341.28
  5. Step 5: Solve for x
    x = 3,526,341.28/2,561.10
  6. Step 6: Final answer
    x = 1,376.89

Related Problems

Find fourth proportional to 1,280.55, 1,921 and 458.92
Half scale
Find fourth proportional to 5,122.20, 7,684 and 1,835.68
Double scale
Find fourth proportional to 2,562.10, 3,843.50 and 918.84
Similar ratio
Find fourth proportional to 3,841.65, 5,763 and 1,376.76
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.