Home / 1,283-1,924.82-371

Finding the Fourth Proportional to 1,283, 1,924.82 and 371

Calculator

Solution

The fourth proportional to 1,283, 1,924.82 and 371 is: 556.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283 : 1,924.82 = 371 : x
  2. Step 2: Convert to fraction form
    1,283/1,924.82 = 371/x
  3. Step 3: Cross multiply
    1,283x = 1,924.82 × 371
  4. Step 4: Simplify right side
    1,283x = 714,108.22
  5. Step 5: Solve for x
    x = 714,108.22/1,283
  6. Step 6: Final answer
    x = 556.59

Related Problems

Find fourth proportional to 641.50, 962.41 and 185.50
Half scale
Find fourth proportional to 2,566, 3,849.64 and 742
Double scale
Find fourth proportional to 1,284, 1,926.32 and 372
Similar ratio
Find fourth proportional to 1,924.50, 2,887.23 and 556.50
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.