Home / 1,184.70-1,776.98-319

Finding the Fourth Proportional to 1,184.70, 1,776.98 and 319

Calculator

Solution

The fourth proportional to 1,184.70, 1,776.98 and 319 is: 478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.70 : 1,776.98 = 319 : x
  2. Step 2: Convert to fraction form
    1,184.70/1,776.98 = 319/x
  3. Step 3: Cross multiply
    1,184.70x = 1,776.98 × 319
  4. Step 4: Simplify right side
    1,184.70x = 566,856.62
  5. Step 5: Solve for x
    x = 566,856.62/1,184.70
  6. Step 6: Final answer
    x = 478.48

Related Problems

Find fourth proportional to 592.35, 888.49 and 159.50
Half scale
Find fourth proportional to 2,369.40, 3,553.96 and 638
Double scale
Find fourth proportional to 1,185.70, 1,778.48 and 320
Similar ratio
Find fourth proportional to 1,777.05, 2,665.47 and 478.50
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.