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Finding the Fourth Proportional to 2,169, 3,254.04 and 630

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Solution

The fourth proportional to 2,169, 3,254.04 and 630 is: 945.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169 : 3,254.04 = 630 : x
  2. Step 2: Convert to fraction form
    2,169/3,254.04 = 630/x
  3. Step 3: Cross multiply
    2,169x = 3,254.04 × 630
  4. Step 4: Simplify right side
    2,169x = 2,050,045.20
  5. Step 5: Solve for x
    x = 2,050,045.20/2,169
  6. Step 6: Final answer
    x = 945.16

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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.