Home / 2,485.60-3,728.88-2,322.40

Finding the Fourth Proportional to 2,485.60, 3,728.88 and 2,322.40

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Solution

The fourth proportional to 2,485.60, 3,728.88 and 2,322.40 is: 3,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.60 : 3,728.88 = 2,322.40 : x
  2. Step 2: Convert to fraction form
    2,485.60/3,728.88 = 2,322.40/x
  3. Step 3: Cross multiply
    2,485.60x = 3,728.88 × 2,322.40
  4. Step 4: Simplify right side
    2,485.60x = 8,659,950.91
  5. Step 5: Solve for x
    x = 8,659,950.91/2,485.60
  6. Step 6: Final answer
    x = 3,484.05

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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.