Home / 2,952.40-4,438.20-2,779.60

Finding the Fourth Proportional to 2,952.40, 4,438.20 and 2,779.60

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Solution

The fourth proportional to 2,952.40, 4,438.20 and 2,779.60 is: 4,178.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,952.40 : 4,438.20 = 2,779.60 : x
  2. Step 2: Convert to fraction form
    2,952.40/4,438.20 = 2,779.60/x
  3. Step 3: Cross multiply
    2,952.40x = 4,438.20 × 2,779.60
  4. Step 4: Simplify right side
    2,952.40x = 12,336,420.72
  5. Step 5: Solve for x
    x = 12,336,420.72/2,952.40
  6. Step 6: Final answer
    x = 4,178.44

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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.