Home / 3,072.15-4,607.67-1,405.91

Finding the Fourth Proportional to 3,072.15, 4,607.67 and 1,405.91

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Solution

The fourth proportional to 3,072.15, 4,607.67 and 1,405.91 is: 2,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.15 : 4,607.67 = 1,405.91 : x
  2. Step 2: Convert to fraction form
    3,072.15/4,607.67 = 1,405.91/x
  3. Step 3: Cross multiply
    3,072.15x = 4,607.67 × 1,405.91
  4. Step 4: Simplify right side
    3,072.15x = 6,477,946.29
  5. Step 5: Solve for x
    x = 6,477,946.29/3,072.15
  6. Step 6: Final answer
    x = 2,108.60

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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.