Home / 1,317.37-1,807.94-1,192.76

Finding the Fourth Proportional to 1,317.37, 1,807.94 and 1,192.76

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Solution

The fourth proportional to 1,317.37, 1,807.94 and 1,192.76 is: 1,636.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.37 : 1,807.94 = 1,192.76 : x
  2. Step 2: Convert to fraction form
    1,317.37/1,807.94 = 1,192.76/x
  3. Step 3: Cross multiply
    1,317.37x = 1,807.94 × 1,192.76
  4. Step 4: Simplify right side
    1,317.37x = 2,156,432.53
  5. Step 5: Solve for x
    x = 2,156,432.53/1,317.37
  6. Step 6: Final answer
    x = 1,636.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.