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Finding the Fourth Proportional to 2,775.84, 4,164.84 and 1,681.02

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Solution

The fourth proportional to 2,775.84, 4,164.84 and 1,681.02 is: 2,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.84 : 4,164.84 = 1,681.02 : x
  2. Step 2: Convert to fraction form
    2,775.84/4,164.84 = 1,681.02/x
  3. Step 3: Cross multiply
    2,775.84x = 4,164.84 × 1,681.02
  4. Step 4: Simplify right side
    2,775.84x = 7,001,179.34
  5. Step 5: Solve for x
    x = 7,001,179.34/2,775.84
  6. Step 6: Final answer
    x = 2,522.18

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1.5x scale

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.