Home / 2,471.80-3,707.70-740

Finding the Fourth Proportional to 2,471.80, 3,707.70 and 740

Calculator

Solution

The fourth proportional to 2,471.80, 3,707.70 and 740 is: 1,110

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471.80 : 3,707.70 = 740 : x
  2. Step 2: Convert to fraction form
    2,471.80/3,707.70 = 740/x
  3. Step 3: Cross multiply
    2,471.80x = 3,707.70 × 740
  4. Step 4: Simplify right side
    2,471.80x = 2,743,698
  5. Step 5: Solve for x
    x = 2,743,698/2,471.80
  6. Step 6: Final answer
    x = 1,110

Related Problems

Find fourth proportional to 1,235.90, 1,853.85 and 370
Half scale
Find fourth proportional to 4,943.60, 7,415.40 and 1,480
Double scale
Find fourth proportional to 2,472.80, 3,709.20 and 741
Similar ratio
Find fourth proportional to 3,707.70, 5,561.55 and 1,110
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.