Home / 974.62-1,460-511.71

Finding the Fourth Proportional to 974.62, 1,460 and 511.71

Calculator

Solution

The fourth proportional to 974.62, 1,460 and 511.71 is: 766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.62 : 1,460 = 511.71 : x
  2. Step 2: Convert to fraction form
    974.62/1,460 = 511.71/x
  3. Step 3: Cross multiply
    974.62x = 1,460 × 511.71
  4. Step 4: Simplify right side
    974.62x = 747,096.60
  5. Step 5: Solve for x
    x = 747,096.60/974.62
  6. Step 6: Final answer
    x = 766.55

Related Problems

Find fourth proportional to 487.31, 730 and 255.86
Half scale
Find fourth proportional to 1,949.24, 2,920 and 1,023.42
Double scale
Find fourth proportional to 975.62, 1,461.50 and 512.71
Similar ratio
Find fourth proportional to 1,461.93, 2,190 and 767.57
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.