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Finding the Fourth Proportional to 1,684.89, 2,527.35 and 530.64

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Solution

The fourth proportional to 1,684.89, 2,527.35 and 530.64 is: 795.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.89 : 2,527.35 = 530.64 : x
  2. Step 2: Convert to fraction form
    1,684.89/2,527.35 = 530.64/x
  3. Step 3: Cross multiply
    1,684.89x = 2,527.35 × 530.64
  4. Step 4: Simplify right side
    1,684.89x = 1,341,113.00
  5. Step 5: Solve for x
    x = 1,341,113.00/1,684.89
  6. Step 6: Final answer
    x = 795.96

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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.