Home / 3,259.20-4,509.36-2,846.40

Finding the Fourth Proportional to 3,259.20, 4,509.36 and 2,846.40

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Solution

The fourth proportional to 3,259.20, 4,509.36 and 2,846.40 is: 3,938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.20 : 4,509.36 = 2,846.40 : x
  2. Step 2: Convert to fraction form
    3,259.20/4,509.36 = 2,846.40/x
  3. Step 3: Cross multiply
    3,259.20x = 4,509.36 × 2,846.40
  4. Step 4: Simplify right side
    3,259.20x = 12,835,442.30
  5. Step 5: Solve for x
    x = 12,835,442.30/3,259.20
  6. Step 6: Final answer
    x = 3,938.22

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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.