Home / 940-1,410-363.12

Finding the Fourth Proportional to 940, 1,410 and 363.12

Calculator

Solution

The fourth proportional to 940, 1,410 and 363.12 is: 544.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    940 : 1,410 = 363.12 : x
  2. Step 2: Convert to fraction form
    940/1,410 = 363.12/x
  3. Step 3: Cross multiply
    940x = 1,410 × 363.12
  4. Step 4: Simplify right side
    940x = 511,999.20
  5. Step 5: Solve for x
    x = 511,999.20/940
  6. Step 6: Final answer
    x = 544.68

Related Problems

Find fourth proportional to 470, 705 and 181.56
Half scale
Find fourth proportional to 1,880, 2,820 and 726.24
Double scale
Find fourth proportional to 941, 1,411.50 and 364.12
Similar ratio
Find fourth proportional to 1,410, 2,115 and 544.68
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.