Home / 587.16-810-377.28

Finding the Fourth Proportional to 587.16, 810 and 377.28

Calculator

Solution

The fourth proportional to 587.16, 810 and 377.28 is: 520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.16 : 810 = 377.28 : x
  2. Step 2: Convert to fraction form
    587.16/810 = 377.28/x
  3. Step 3: Cross multiply
    587.16x = 810 × 377.28
  4. Step 4: Simplify right side
    587.16x = 305,596.80
  5. Step 5: Solve for x
    x = 305,596.80/587.16
  6. Step 6: Final answer
    x = 520.47

Related Problems

Find fourth proportional to 293.58, 405 and 188.64
Half scale
Find fourth proportional to 1,174.32, 1,620 and 754.56
Double scale
Find fourth proportional to 588.16, 811.38 and 378.28
Similar ratio
Find fourth proportional to 880.74, 1,215 and 565.92
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.