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Finding the Fourth Proportional to 1,083.60, 1,624.36 and 535.52

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Solution

The fourth proportional to 1,083.60, 1,624.36 and 535.52 is: 802.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.60 : 1,624.36 = 535.52 : x
  2. Step 2: Convert to fraction form
    1,083.60/1,624.36 = 535.52/x
  3. Step 3: Cross multiply
    1,083.60x = 1,624.36 × 535.52
  4. Step 4: Simplify right side
    1,083.60x = 869,877.27
  5. Step 5: Solve for x
    x = 869,877.27/1,083.60
  6. Step 6: Final answer
    x = 802.77

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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.