Home / 998.75-1,581

Finding the Third Proportional to 998.75 and 1,581

Calculator

Solution

The third proportional to 998.75 and 1,581 is: 2,502.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    998.75 : 1,581 = 1,581 : x
  2. Step 2: Convert to fraction form
    998.75/1,581 = 1,581/x
  3. Step 3: Cross multiply
    998.75x = 1,581 × 1,581
  4. Step 4: Simplify right side
    998.75x = 2,499,561
  5. Step 5: Solve for x
    x = 2,499,561/998.75
  6. Step 6: Final answer
    x = 2,502.69

Related Problems

Find third proportional to 499.38 and 790.50
Half scale
Find third proportional to 1,997.50 and 3,162
Double scale
Find third proportional to 1,001 and 1,584
Similar ratio
Find third proportional to 1,498.13 and 2,371.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.