Home / 4,942.40-7,411.80-1,655.60

Finding the Fourth Proportional to 4,942.40, 7,411.80 and 1,655.60

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Solution

The fourth proportional to 4,942.40, 7,411.80 and 1,655.60 is: 2,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.40 : 7,411.80 = 1,655.60 : x
  2. Step 2: Convert to fraction form
    4,942.40/7,411.80 = 1,655.60/x
  3. Step 3: Cross multiply
    4,942.40x = 7,411.80 × 1,655.60
  4. Step 4: Simplify right side
    4,942.40x = 12,270,976.08
  5. Step 5: Solve for x
    x = 12,270,976.08/4,942.40
  6. Step 6: Final answer
    x = 2,482.80

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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.