Home / 5,290.08-7,300-2,900

Finding the Fourth Proportional to 5,290.08, 7,300 and 2,900

Calculator

Solution

The fourth proportional to 5,290.08, 7,300 and 2,900 is: 4,001.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.08 : 7,300 = 2,900 : x
  2. Step 2: Convert to fraction form
    5,290.08/7,300 = 2,900/x
  3. Step 3: Cross multiply
    5,290.08x = 7,300 × 2,900
  4. Step 4: Simplify right side
    5,290.08x = 21,170,000
  5. Step 5: Solve for x
    x = 21,170,000/5,290.08
  6. Step 6: Final answer
    x = 4,001.83

Related Problems

Find fourth proportional to 2,645.04, 3,650 and 1,450
Half scale
Find fourth proportional to 10,580.16, 14,600 and 5,800
Double scale
Find fourth proportional to 5,291.08, 7,301.38 and 2,901
Similar ratio
Find fourth proportional to 7,935.12, 10,950 and 4,350
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.