Home / 5,415.06-8,116.40-2,455.76

Finding the Fourth Proportional to 5,415.06, 8,116.40 and 2,455.76

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Solution

The fourth proportional to 5,415.06, 8,116.40 and 2,455.76 is: 3,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.06 : 8,116.40 = 2,455.76 : x
  2. Step 2: Convert to fraction form
    5,415.06/8,116.40 = 2,455.76/x
  3. Step 3: Cross multiply
    5,415.06x = 8,116.40 × 2,455.76
  4. Step 4: Simplify right side
    5,415.06x = 19,931,930.46
  5. Step 5: Solve for x
    x = 19,931,930.46/5,415.06
  6. Step 6: Final answer
    x = 3,680.83

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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.