Home / 1,867.56-2,576.76-1,121.28

Finding the Fourth Proportional to 1,867.56, 2,576.76 and 1,121.28

Calculator

Solution

The fourth proportional to 1,867.56, 2,576.76 and 1,121.28 is: 1,547.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.56 : 2,576.76 = 1,121.28 : x
  2. Step 2: Convert to fraction form
    1,867.56/2,576.76 = 1,121.28/x
  3. Step 3: Cross multiply
    1,867.56x = 2,576.76 × 1,121.28
  4. Step 4: Simplify right side
    1,867.56x = 2,889,269.45
  5. Step 5: Solve for x
    x = 2,889,269.45/1,867.56
  6. Step 6: Final answer
    x = 1,547.08

Related Problems

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.