Home / 1,923.70-2,886-625.17

Finding the Fourth Proportional to 1,923.70, 2,886 and 625.17

Calculator

Solution

The fourth proportional to 1,923.70, 2,886 and 625.17 is: 937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.70 : 2,886 = 625.17 : x
  2. Step 2: Convert to fraction form
    1,923.70/2,886 = 625.17/x
  3. Step 3: Cross multiply
    1,923.70x = 2,886 × 625.17
  4. Step 4: Simplify right side
    1,923.70x = 1,804,240.62
  5. Step 5: Solve for x
    x = 1,804,240.62/1,923.70
  6. Step 6: Final answer
    x = 937.90

Related Problems

Find fourth proportional to 961.85, 1,443 and 312.59
Half scale
Find fourth proportional to 3,847.40, 5,772 and 1,250.34
Double scale
Find fourth proportional to 1,924.70, 2,887.50 and 626.17
Similar ratio
Find fourth proportional to 2,885.55, 4,329 and 937.76
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.