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Finding the Fourth Proportional to 5,759.84, 8,618.72 and 4,988.88

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Solution

The fourth proportional to 5,759.84, 8,618.72 and 4,988.88 is: 7,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.84 : 8,618.72 = 4,988.88 : x
  2. Step 2: Convert to fraction form
    5,759.84/8,618.72 = 4,988.88/x
  3. Step 3: Cross multiply
    5,759.84x = 8,618.72 × 4,988.88
  4. Step 4: Simplify right side
    5,759.84x = 42,997,759.83
  5. Step 5: Solve for x
    x = 42,997,759.83/5,759.84
  6. Step 6: Final answer
    x = 7,465.10

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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.