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Finding the Fourth Proportional to 1,152.32, 1,727.76 and 535.64

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Solution

The fourth proportional to 1,152.32, 1,727.76 and 535.64 is: 803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.32 : 1,727.76 = 535.64 : x
  2. Step 2: Convert to fraction form
    1,152.32/1,727.76 = 535.64/x
  3. Step 3: Cross multiply
    1,152.32x = 1,727.76 × 535.64
  4. Step 4: Simplify right side
    1,152.32x = 925,457.37
  5. Step 5: Solve for x
    x = 925,457.37/1,152.32
  6. Step 6: Final answer
    x = 803.13

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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.