Home / 1,056.40-1,583.79-535.98

Finding the Fourth Proportional to 1,056.40, 1,583.79 and 535.98

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Solution

The fourth proportional to 1,056.40, 1,583.79 and 535.98 is: 803.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.40 : 1,583.79 = 535.98 : x
  2. Step 2: Convert to fraction form
    1,056.40/1,583.79 = 535.98/x
  3. Step 3: Cross multiply
    1,056.40x = 1,583.79 × 535.98
  4. Step 4: Simplify right side
    1,056.40x = 848,879.76
  5. Step 5: Solve for x
    x = 848,879.76/1,056.40
  6. Step 6: Final answer
    x = 803.56

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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.