Home / 4,290.42-5,920.08-2,611.28

Finding the Fourth Proportional to 4,290.42, 5,920.08 and 2,611.28

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Solution

The fourth proportional to 4,290.42, 5,920.08 and 2,611.28 is: 3,603.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.42 : 5,920.08 = 2,611.28 : x
  2. Step 2: Convert to fraction form
    4,290.42/5,920.08 = 2,611.28/x
  3. Step 3: Cross multiply
    4,290.42x = 5,920.08 × 2,611.28
  4. Step 4: Simplify right side
    4,290.42x = 15,458,986.50
  5. Step 5: Solve for x
    x = 15,458,986.50/4,290.42
  6. Step 6: Final answer
    x = 3,603.14

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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.