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Finding the Fourth Proportional to 1,674.04, 2,310.18 and 928.05

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Solution

The fourth proportional to 1,674.04, 2,310.18 and 928.05 is: 1,280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.04 : 2,310.18 = 928.05 : x
  2. Step 2: Convert to fraction form
    1,674.04/2,310.18 = 928.05/x
  3. Step 3: Cross multiply
    1,674.04x = 2,310.18 × 928.05
  4. Step 4: Simplify right side
    1,674.04x = 2,143,962.55
  5. Step 5: Solve for x
    x = 2,143,962.55/1,674.04
  6. Step 6: Final answer
    x = 1,280.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.