Home / 2,860.02-3,944.70-1,915.50

Finding the Fourth Proportional to 2,860.02, 3,944.70 and 1,915.50

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Solution

The fourth proportional to 2,860.02, 3,944.70 and 1,915.50 is: 2,641.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.02 : 3,944.70 = 1,915.50 : x
  2. Step 2: Convert to fraction form
    2,860.02/3,944.70 = 1,915.50/x
  3. Step 3: Cross multiply
    2,860.02x = 3,944.70 × 1,915.50
  4. Step 4: Simplify right side
    2,860.02x = 7,556,072.85
  5. Step 5: Solve for x
    x = 7,556,072.85/2,860.02
  6. Step 6: Final answer
    x = 2,641.97

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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.