Home / 1,697-2,545.50-481

Finding the Fourth Proportional to 1,697, 2,545.50 and 481

Calculator

Solution

The fourth proportional to 1,697, 2,545.50 and 481 is: 721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697 : 2,545.50 = 481 : x
  2. Step 2: Convert to fraction form
    1,697/2,545.50 = 481/x
  3. Step 3: Cross multiply
    1,697x = 2,545.50 × 481
  4. Step 4: Simplify right side
    1,697x = 1,224,385.50
  5. Step 5: Solve for x
    x = 1,224,385.50/1,697
  6. Step 6: Final answer
    x = 721.50

Related Problems

Find fourth proportional to 848.50, 1,272.75 and 240.50
Half scale
Find fourth proportional to 3,394, 5,091 and 962
Double scale
Find fourth proportional to 1,698, 2,547 and 482
Similar ratio
Find fourth proportional to 2,545.50, 3,818.25 and 721.50
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.