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Finding the Fourth Proportional to 3,006.76, 4,510.65 and 926.72

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Solution

The fourth proportional to 3,006.76, 4,510.65 and 926.72 is: 1,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,006.76 : 4,510.65 = 926.72 : x
  2. Step 2: Convert to fraction form
    3,006.76/4,510.65 = 926.72/x
  3. Step 3: Cross multiply
    3,006.76x = 4,510.65 × 926.72
  4. Step 4: Simplify right side
    3,006.76x = 4,180,120.84
  5. Step 5: Solve for x
    x = 4,180,120.84/3,006.76
  6. Step 6: Final answer
    x = 1,390.24

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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.