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Finding the Fourth Proportional to 1,895.68, 2,837.68 and 1,435.20

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Solution

The fourth proportional to 1,895.68, 2,837.68 and 1,435.20 is: 2,148.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.68 : 2,837.68 = 1,435.20 : x
  2. Step 2: Convert to fraction form
    1,895.68/2,837.68 = 1,435.20/x
  3. Step 3: Cross multiply
    1,895.68x = 2,837.68 × 1,435.20
  4. Step 4: Simplify right side
    1,895.68x = 4,072,638.34
  5. Step 5: Solve for x
    x = 4,072,638.34/1,895.68
  6. Step 6: Final answer
    x = 2,148.38

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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.