Home / 553-1,187

Finding the Third Proportional to 553 and 1,187

Calculator

Solution

The third proportional to 553 and 1,187 is: 2,547.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    553 : 1,187 = 1,187 : x
  2. Step 2: Convert to fraction form
    553/1,187 = 1,187/x
  3. Step 3: Cross multiply
    553x = 1,187 × 1,187
  4. Step 4: Simplify right side
    553x = 1,408,969
  5. Step 5: Solve for x
    x = 1,408,969/553
  6. Step 6: Final answer
    x = 2,547.86

Related Problems

Find third proportional to 276.50 and 593.50
Half scale
Find third proportional to 1,106 and 2,374
Double scale
Find third proportional to 555 and 1,191
Similar ratio
Find third proportional to 829.50 and 1,780.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.