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Finding the Fourth Proportional to 4,689.84, 7,034.88 and 1,767.60

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Solution

The fourth proportional to 4,689.84, 7,034.88 and 1,767.60 is: 2,651.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.84 : 7,034.88 = 1,767.60 : x
  2. Step 2: Convert to fraction form
    4,689.84/7,034.88 = 1,767.60/x
  3. Step 3: Cross multiply
    4,689.84x = 7,034.88 × 1,767.60
  4. Step 4: Simplify right side
    4,689.84x = 12,434,853.89
  5. Step 5: Solve for x
    x = 12,434,853.89/4,689.84
  6. Step 6: Final answer
    x = 2,651.45

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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.