Home / 1,978.73-2,730.81-1,094.70

Finding the Fourth Proportional to 1,978.73, 2,730.81 and 1,094.70

Calculator

Solution

The fourth proportional to 1,978.73, 2,730.81 and 1,094.70 is: 1,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978.73 : 2,730.81 = 1,094.70 : x
  2. Step 2: Convert to fraction form
    1,978.73/2,730.81 = 1,094.70/x
  3. Step 3: Cross multiply
    1,978.73x = 2,730.81 × 1,094.70
  4. Step 4: Simplify right side
    1,978.73x = 2,989,417.71
  5. Step 5: Solve for x
    x = 2,989,417.71/1,978.73
  6. Step 6: Final answer
    x = 1,510.78

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.