Home / 4.56-6.30-4

Finding the Fourth Proportional to 4.56, 6.30 and 4

Calculator

Solution

The fourth proportional to 4.56, 6.30 and 4 is: 5.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.56 : 6.30 = 4 : x
  2. Step 2: Convert to fraction form
    4.56/6.30 = 4/x
  3. Step 3: Cross multiply
    4.56x = 6.30 × 4
  4. Step 4: Simplify right side
    4.56x = 25.20
  5. Step 5: Solve for x
    x = 25.20/4.56
  6. Step 6: Final answer
    x = 5.53

Related Problems

Find fourth proportional to 2.28, 3.15 and 2
Half scale
Find fourth proportional to 9.12, 12.60 and 8
Double scale
Find fourth proportional to 5.56, 7.68 and 5
Similar ratio
Find fourth proportional to 6.84, 9.45 and 6
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.