Home / 7,070.56-10,604.70-2,139.34

Finding the Fourth Proportional to 7,070.56, 10,604.70 and 2,139.34

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Solution

The fourth proportional to 7,070.56, 10,604.70 and 2,139.34 is: 3,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.56 : 10,604.70 = 2,139.34 : x
  2. Step 2: Convert to fraction form
    7,070.56/10,604.70 = 2,139.34/x
  3. Step 3: Cross multiply
    7,070.56x = 10,604.70 × 2,139.34
  4. Step 4: Simplify right side
    7,070.56x = 22,687,058.90
  5. Step 5: Solve for x
    x = 22,687,058.90/7,070.56
  6. Step 6: Final answer
    x = 3,208.67

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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.