Home / 3,036.40-4,549.20-2,485.60

Finding the Fourth Proportional to 3,036.40, 4,549.20 and 2,485.60

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Solution

The fourth proportional to 3,036.40, 4,549.20 and 2,485.60 is: 3,723.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.40 : 4,549.20 = 2,485.60 : x
  2. Step 2: Convert to fraction form
    3,036.40/4,549.20 = 2,485.60/x
  3. Step 3: Cross multiply
    3,036.40x = 4,549.20 × 2,485.60
  4. Step 4: Simplify right side
    3,036.40x = 11,307,491.52
  5. Step 5: Solve for x
    x = 11,307,491.52/3,036.40
  6. Step 6: Final answer
    x = 3,723.98

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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.