Home / 4,890.70-7,332.40-2,942.45

Finding the Fourth Proportional to 4,890.70, 7,332.40 and 2,942.45

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Solution

The fourth proportional to 4,890.70, 7,332.40 and 2,942.45 is: 4,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.70 : 7,332.40 = 2,942.45 : x
  2. Step 2: Convert to fraction form
    4,890.70/7,332.40 = 2,942.45/x
  3. Step 3: Cross multiply
    4,890.70x = 7,332.40 × 2,942.45
  4. Step 4: Simplify right side
    4,890.70x = 21,575,169.01
  5. Step 5: Solve for x
    x = 21,575,169.01/4,890.70
  6. Step 6: Final answer
    x = 4,411.47

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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.