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Finding the Fourth Proportional to 4,585.62, 6,878.43 and 1,988.50

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Solution

The fourth proportional to 4,585.62, 6,878.43 and 1,988.50 is: 2,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,585.62 : 6,878.43 = 1,988.50 : x
  2. Step 2: Convert to fraction form
    4,585.62/6,878.43 = 1,988.50/x
  3. Step 3: Cross multiply
    4,585.62x = 6,878.43 × 1,988.50
  4. Step 4: Simplify right side
    4,585.62x = 13,677,758.06
  5. Step 5: Solve for x
    x = 13,677,758.06/4,585.62
  6. Step 6: Final answer
    x = 2,982.75

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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.