Home / 4,988.21-6,886.20-3,866.63

Finding the Fourth Proportional to 4,988.21, 6,886.20 and 3,866.63

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Solution

The fourth proportional to 4,988.21, 6,886.20 and 3,866.63 is: 5,337.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.21 : 6,886.20 = 3,866.63 : x
  2. Step 2: Convert to fraction form
    4,988.21/6,886.20 = 3,866.63/x
  3. Step 3: Cross multiply
    4,988.21x = 6,886.20 × 3,866.63
  4. Step 4: Simplify right side
    4,988.21x = 26,626,353.08
  5. Step 5: Solve for x
    x = 26,626,353.08/4,988.21
  6. Step 6: Final answer
    x = 5,337.86

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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.