Home / 1,631.32-2,447.36-535.66

Finding the Fourth Proportional to 1,631.32, 2,447.36 and 535.66

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Solution

The fourth proportional to 1,631.32, 2,447.36 and 535.66 is: 803.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.32 : 2,447.36 = 535.66 : x
  2. Step 2: Convert to fraction form
    1,631.32/2,447.36 = 535.66/x
  3. Step 3: Cross multiply
    1,631.32x = 2,447.36 × 535.66
  4. Step 4: Simplify right side
    1,631.32x = 1,310,955.25
  5. Step 5: Solve for x
    x = 1,310,955.25/1,631.32
  6. Step 6: Final answer
    x = 803.62

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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.