Home / 1,120.91-1,547.26-802.28

Finding the Fourth Proportional to 1,120.91, 1,547.26 and 802.28

Calculator

Solution

The fourth proportional to 1,120.91, 1,547.26 and 802.28 is: 1,107.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120.91 : 1,547.26 = 802.28 : x
  2. Step 2: Convert to fraction form
    1,120.91/1,547.26 = 802.28/x
  3. Step 3: Cross multiply
    1,120.91x = 1,547.26 × 802.28
  4. Step 4: Simplify right side
    1,120.91x = 1,241,335.75
  5. Step 5: Solve for x
    x = 1,241,335.75/1,120.91
  6. Step 6: Final answer
    x = 1,107.44

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.