Home / 1,378.50-1,473

Finding the Third Proportional to 1,378.50 and 1,473

Calculator

Solution

The third proportional to 1,378.50 and 1,473 is: 1,573.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378.50 : 1,473 = 1,473 : x
  2. Step 2: Convert to fraction form
    1,378.50/1,473 = 1,473/x
  3. Step 3: Cross multiply
    1,378.50x = 1,473 × 1,473
  4. Step 4: Simplify right side
    1,378.50x = 2,169,729
  5. Step 5: Solve for x
    x = 2,169,729/1,378.50
  6. Step 6: Final answer
    x = 1,573.98

Related Problems

Find third proportional to 689.25 and 736.50
Half scale
Find third proportional to 2,757 and 2,946
Double scale
Find third proportional to 1,381 and 1,475
Similar ratio
Find third proportional to 2,067.75 and 2,209.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.