Home / 1,442.64-2,163.32-530

Finding the Fourth Proportional to 1,442.64, 2,163.32 and 530

Calculator

Solution

The fourth proportional to 1,442.64, 2,163.32 and 530 is: 794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.64 : 2,163.32 = 530 : x
  2. Step 2: Convert to fraction form
    1,442.64/2,163.32 = 530/x
  3. Step 3: Cross multiply
    1,442.64x = 2,163.32 × 530
  4. Step 4: Simplify right side
    1,442.64x = 1,146,559.60
  5. Step 5: Solve for x
    x = 1,146,559.60/1,442.64
  6. Step 6: Final answer
    x = 794.76

Related Problems

Find fourth proportional to 721.32, 1,081.66 and 265
Half scale
Find fourth proportional to 2,885.28, 4,326.64 and 1,060
Double scale
Find fourth proportional to 1,443.64, 2,164.82 and 531
Similar ratio
Find fourth proportional to 2,163.96, 3,244.98 and 795
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.