Home / 7,070.96-10,607.68-2,688.80

Finding the Fourth Proportional to 7,070.96, 10,607.68 and 2,688.80

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Solution

The fourth proportional to 7,070.96, 10,607.68 and 2,688.80 is: 4,033.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.96 : 10,607.68 = 2,688.80 : x
  2. Step 2: Convert to fraction form
    7,070.96/10,607.68 = 2,688.80/x
  3. Step 3: Cross multiply
    7,070.96x = 10,607.68 × 2,688.80
  4. Step 4: Simplify right side
    7,070.96x = 28,521,929.98
  5. Step 5: Solve for x
    x = 28,521,929.98/7,070.96
  6. Step 6: Final answer
    x = 4,033.67

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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.