Home / 4,283.52-6,420.40-3,240.12

Finding the Fourth Proportional to 4,283.52, 6,420.40 and 3,240.12

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Solution

The fourth proportional to 4,283.52, 6,420.40 and 3,240.12 is: 4,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,283.52 : 6,420.40 = 3,240.12 : x
  2. Step 2: Convert to fraction form
    4,283.52/6,420.40 = 3,240.12/x
  3. Step 3: Cross multiply
    4,283.52x = 6,420.40 × 3,240.12
  4. Step 4: Simplify right side
    4,283.52x = 20,802,866.45
  5. Step 5: Solve for x
    x = 20,802,866.45/4,283.52
  6. Step 6: Final answer
    x = 4,856.49

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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.