Home / 2,903.54-4,008.55-1,911.70

Finding the Fourth Proportional to 2,903.54, 4,008.55 and 1,911.70

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Solution

The fourth proportional to 2,903.54, 4,008.55 and 1,911.70 is: 2,639.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,903.54 : 4,008.55 = 1,911.70 : x
  2. Step 2: Convert to fraction form
    2,903.54/4,008.55 = 1,911.70/x
  3. Step 3: Cross multiply
    2,903.54x = 4,008.55 × 1,911.70
  4. Step 4: Simplify right side
    2,903.54x = 7,663,156.37
  5. Step 5: Solve for x
    x = 7,663,156.37/2,903.54
  6. Step 6: Final answer
    x = 2,639.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.