Home / 3,160.19-4,740.49-1,311.45

Finding the Fourth Proportional to 3,160.19, 4,740.49 and 1,311.45

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Solution

The fourth proportional to 3,160.19, 4,740.49 and 1,311.45 is: 1,967.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.19 : 4,740.49 = 1,311.45 : x
  2. Step 2: Convert to fraction form
    3,160.19/4,740.49 = 1,311.45/x
  3. Step 3: Cross multiply
    3,160.19x = 4,740.49 × 1,311.45
  4. Step 4: Simplify right side
    3,160.19x = 6,216,915.61
  5. Step 5: Solve for x
    x = 6,216,915.61/3,160.19
  6. Step 6: Final answer
    x = 1,967.26

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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.