Home / 1,246-1,869-476.50

Finding the Fourth Proportional to 1,246, 1,869 and 476.50

Calculator

Solution

The fourth proportional to 1,246, 1,869 and 476.50 is: 714.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246 : 1,869 = 476.50 : x
  2. Step 2: Convert to fraction form
    1,246/1,869 = 476.50/x
  3. Step 3: Cross multiply
    1,246x = 1,869 × 476.50
  4. Step 4: Simplify right side
    1,246x = 890,578.50
  5. Step 5: Solve for x
    x = 890,578.50/1,246
  6. Step 6: Final answer
    x = 714.75

Related Problems

Find fourth proportional to 623, 934.50 and 238.25
Half scale
Find fourth proportional to 2,492, 3,738 and 953
Double scale
Find fourth proportional to 1,247, 1,870.50 and 477.50
Similar ratio
Find fourth proportional to 1,869, 2,803.50 and 714.75
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.