Home / 3,158.64-4,738-1,210.96

Finding the Fourth Proportional to 3,158.64, 4,738 and 1,210.96

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Solution

The fourth proportional to 3,158.64, 4,738 and 1,210.96 is: 1,816.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.64 : 4,738 = 1,210.96 : x
  2. Step 2: Convert to fraction form
    3,158.64/4,738 = 1,210.96/x
  3. Step 3: Cross multiply
    3,158.64x = 4,738 × 1,210.96
  4. Step 4: Simplify right side
    3,158.64x = 5,737,528.48
  5. Step 5: Solve for x
    x = 5,737,528.48/3,158.64
  6. Step 6: Final answer
    x = 1,816.46

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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.