Home / 5,775.40-8,661.90-2,488.60

Finding the Fourth Proportional to 5,775.40, 8,661.90 and 2,488.60

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Solution

The fourth proportional to 5,775.40, 8,661.90 and 2,488.60 is: 3,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.40 : 8,661.90 = 2,488.60 : x
  2. Step 2: Convert to fraction form
    5,775.40/8,661.90 = 2,488.60/x
  3. Step 3: Cross multiply
    5,775.40x = 8,661.90 × 2,488.60
  4. Step 4: Simplify right side
    5,775.40x = 21,556,004.34
  5. Step 5: Solve for x
    x = 21,556,004.34/5,775.40
  6. Step 6: Final answer
    x = 3,732.38

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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.