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Finding the Fourth Proportional to 3,888.34, 5,364.57 and 2,708.98

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Solution

The fourth proportional to 3,888.34, 5,364.57 and 2,708.98 is: 3,737.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.34 : 5,364.57 = 2,708.98 : x
  2. Step 2: Convert to fraction form
    3,888.34/5,364.57 = 2,708.98/x
  3. Step 3: Cross multiply
    3,888.34x = 5,364.57 × 2,708.98
  4. Step 4: Simplify right side
    3,888.34x = 14,532,512.84
  5. Step 5: Solve for x
    x = 14,532,512.84/3,888.34
  6. Step 6: Final answer
    x = 3,737.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.