Home / 1,312.63-1,963.08-1,167.28

Finding the Fourth Proportional to 1,312.63, 1,963.08 and 1,167.28

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Solution

The fourth proportional to 1,312.63, 1,963.08 and 1,167.28 is: 1,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312.63 : 1,963.08 = 1,167.28 : x
  2. Step 2: Convert to fraction form
    1,312.63/1,963.08 = 1,167.28/x
  3. Step 3: Cross multiply
    1,312.63x = 1,963.08 × 1,167.28
  4. Step 4: Simplify right side
    1,312.63x = 2,291,464.02
  5. Step 5: Solve for x
    x = 2,291,464.02/1,312.63
  6. Step 6: Final answer
    x = 1,745.70

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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.