Home / 1,376.91-1,899.54-1,003.32

Finding the Fourth Proportional to 1,376.91, 1,899.54 and 1,003.32

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Solution

The fourth proportional to 1,376.91, 1,899.54 and 1,003.32 is: 1,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.91 : 1,899.54 = 1,003.32 : x
  2. Step 2: Convert to fraction form
    1,376.91/1,899.54 = 1,003.32/x
  3. Step 3: Cross multiply
    1,376.91x = 1,899.54 × 1,003.32
  4. Step 4: Simplify right side
    1,376.91x = 1,905,846.47
  5. Step 5: Solve for x
    x = 1,905,846.47/1,376.91
  6. Step 6: Final answer
    x = 1,384.15

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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.