Home / 1,688.58-2,330.28-942.51

Finding the Fourth Proportional to 1,688.58, 2,330.28 and 942.51

Calculator

Solution

The fourth proportional to 1,688.58, 2,330.28 and 942.51 is: 1,300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.58 : 2,330.28 = 942.51 : x
  2. Step 2: Convert to fraction form
    1,688.58/2,330.28 = 942.51/x
  3. Step 3: Cross multiply
    1,688.58x = 2,330.28 × 942.51
  4. Step 4: Simplify right side
    1,688.58x = 2,196,312.20
  5. Step 5: Solve for x
    x = 2,196,312.20/1,688.58
  6. Step 6: Final answer
    x = 1,300.69

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.