Home / 3,485.70-5,225.04-2,390.40

Finding the Fourth Proportional to 3,485.70, 5,225.04 and 2,390.40

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Solution

The fourth proportional to 3,485.70, 5,225.04 and 2,390.40 is: 3,583.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.70 : 5,225.04 = 2,390.40 : x
  2. Step 2: Convert to fraction form
    3,485.70/5,225.04 = 2,390.40/x
  3. Step 3: Cross multiply
    3,485.70x = 5,225.04 × 2,390.40
  4. Step 4: Simplify right side
    3,485.70x = 12,489,935.62
  5. Step 5: Solve for x
    x = 12,489,935.62/3,485.70
  6. Step 6: Final answer
    x = 3,583.19

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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.