Home / 3,494.70-5,240-1,413

Finding the Fourth Proportional to 3,494.70, 5,240 and 1,413

Calculator

Solution

The fourth proportional to 3,494.70, 5,240 and 1,413 is: 2,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,494.70 : 5,240 = 1,413 : x
  2. Step 2: Convert to fraction form
    3,494.70/5,240 = 1,413/x
  3. Step 3: Cross multiply
    3,494.70x = 5,240 × 1,413
  4. Step 4: Simplify right side
    3,494.70x = 7,404,120
  5. Step 5: Solve for x
    x = 7,404,120/3,494.70
  6. Step 6: Final answer
    x = 2,118.67

Related Problems

Find fourth proportional to 1,747.35, 2,620 and 706.50
Half scale
Find fourth proportional to 6,989.40, 10,480 and 2,826
Double scale
Find fourth proportional to 3,495.70, 5,241.50 and 1,414
Similar ratio
Find fourth proportional to 5,242.05, 7,860 and 2,119.50
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.