Home / 1,747.38-2,621-514.74

Finding the Fourth Proportional to 1,747.38, 2,621 and 514.74

Calculator

Solution

The fourth proportional to 1,747.38, 2,621 and 514.74 is: 772.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.38 : 2,621 = 514.74 : x
  2. Step 2: Convert to fraction form
    1,747.38/2,621 = 514.74/x
  3. Step 3: Cross multiply
    1,747.38x = 2,621 × 514.74
  4. Step 4: Simplify right side
    1,747.38x = 1,349,133.54
  5. Step 5: Solve for x
    x = 1,349,133.54/1,747.38
  6. Step 6: Final answer
    x = 772.09

Related Problems

Find fourth proportional to 873.69, 1,310.50 and 257.37
Half scale
Find fourth proportional to 3,494.76, 5,242 and 1,029.48
Double scale
Find fourth proportional to 1,748.38, 2,622.50 and 515.74
Similar ratio
Find fourth proportional to 2,621.07, 3,931.50 and 772.11
1.5x scale

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.