Home / 1,331.46-1,836.81-1,156.50

Finding the Fourth Proportional to 1,331.46, 1,836.81 and 1,156.50

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Solution

The fourth proportional to 1,331.46, 1,836.81 and 1,156.50 is: 1,595.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.46 : 1,836.81 = 1,156.50 : x
  2. Step 2: Convert to fraction form
    1,331.46/1,836.81 = 1,156.50/x
  3. Step 3: Cross multiply
    1,331.46x = 1,836.81 × 1,156.50
  4. Step 4: Simplify right side
    1,331.46x = 2,124,270.77
  5. Step 5: Solve for x
    x = 2,124,270.77/1,331.46
  6. Step 6: Final answer
    x = 1,595.44

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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.