Home / 691.71-1,037.56-204.72

Finding the Fourth Proportional to 691.71, 1,037.56 and 204.72

Calculator

Solution

The fourth proportional to 691.71, 1,037.56 and 204.72 is: 307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.71 : 1,037.56 = 204.72 : x
  2. Step 2: Convert to fraction form
    691.71/1,037.56 = 204.72/x
  3. Step 3: Cross multiply
    691.71x = 1,037.56 × 204.72
  4. Step 4: Simplify right side
    691.71x = 212,412.39
  5. Step 5: Solve for x
    x = 212,412.39/691.71
  6. Step 6: Final answer
    x = 307.08

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.