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Finding the Fourth Proportional to 1,684.41, 2,526.36 and 807.45

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Solution

The fourth proportional to 1,684.41, 2,526.36 and 807.45 is: 1,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.41 : 2,526.36 = 807.45 : x
  2. Step 2: Convert to fraction form
    1,684.41/2,526.36 = 807.45/x
  3. Step 3: Cross multiply
    1,684.41x = 2,526.36 × 807.45
  4. Step 4: Simplify right side
    1,684.41x = 2,039,909.38
  5. Step 5: Solve for x
    x = 2,039,909.38/1,684.41
  6. Step 6: Final answer
    x = 1,211.05

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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.