Home / 2,368.85-3,271.19-1,778.36

Finding the Fourth Proportional to 2,368.85, 3,271.19 and 1,778.36

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Solution

The fourth proportional to 2,368.85, 3,271.19 and 1,778.36 is: 2,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.85 : 3,271.19 = 1,778.36 : x
  2. Step 2: Convert to fraction form
    2,368.85/3,271.19 = 1,778.36/x
  3. Step 3: Cross multiply
    2,368.85x = 3,271.19 × 1,778.36
  4. Step 4: Simplify right side
    2,368.85x = 5,817,328.20
  5. Step 5: Solve for x
    x = 5,817,328.20/2,368.85
  6. Step 6: Final answer
    x = 2,455.77

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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.