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Finding the Fourth Proportional to 7,070.84, 10,602.12 and 2,688.62

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Solution

The fourth proportional to 7,070.84, 10,602.12 and 2,688.62 is: 4,031.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.84 : 10,602.12 = 2,688.62 : x
  2. Step 2: Convert to fraction form
    7,070.84/10,602.12 = 2,688.62/x
  3. Step 3: Cross multiply
    7,070.84x = 10,602.12 × 2,688.62
  4. Step 4: Simplify right side
    7,070.84x = 28,505,071.87
  5. Step 5: Solve for x
    x = 28,505,071.87/7,070.84
  6. Step 6: Final answer
    x = 4,031.36

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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.