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Finding the Fourth Proportional to 1,888.35, 2,825.51 and 1,656.15

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Solution

The fourth proportional to 1,888.35, 2,825.51 and 1,656.15 is: 2,478.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.35 : 2,825.51 = 1,656.15 : x
  2. Step 2: Convert to fraction form
    1,888.35/2,825.51 = 1,656.15/x
  3. Step 3: Cross multiply
    1,888.35x = 2,825.51 × 1,656.15
  4. Step 4: Simplify right side
    1,888.35x = 4,679,460.11
  5. Step 5: Solve for x
    x = 4,679,460.11/1,888.35
  6. Step 6: Final answer
    x = 2,478.07

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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.