Home / 2,905.40-4,357.70-1,173.62

Finding the Fourth Proportional to 2,905.40, 4,357.70 and 1,173.62

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Solution

The fourth proportional to 2,905.40, 4,357.70 and 1,173.62 is: 1,760.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.40 : 4,357.70 = 1,173.62 : x
  2. Step 2: Convert to fraction form
    2,905.40/4,357.70 = 1,173.62/x
  3. Step 3: Cross multiply
    2,905.40x = 4,357.70 × 1,173.62
  4. Step 4: Simplify right side
    2,905.40x = 5,114,283.87
  5. Step 5: Solve for x
    x = 5,114,283.87/2,905.40
  6. Step 6: Final answer
    x = 1,760.27

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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.