Home / 3,916.84-5,874-3,658

Finding the Fourth Proportional to 3,916.84, 5,874 and 3,658

Calculator

Solution

The fourth proportional to 3,916.84, 5,874 and 3,658 is: 5,485.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.84 : 5,874 = 3,658 : x
  2. Step 2: Convert to fraction form
    3,916.84/5,874 = 3,658/x
  3. Step 3: Cross multiply
    3,916.84x = 5,874 × 3,658
  4. Step 4: Simplify right side
    3,916.84x = 21,487,092
  5. Step 5: Solve for x
    x = 21,487,092/3,916.84
  6. Step 6: Final answer
    x = 5,485.82

Related Problems

Find fourth proportional to 1,958.42, 2,937 and 1,829
Half scale
Find fourth proportional to 7,833.68, 11,748 and 7,316
Double scale
Find fourth proportional to 3,917.84, 5,875.50 and 3,659
Similar ratio
Find fourth proportional to 5,875.26, 8,811 and 5,487
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.