Home / 7,030.90-10,542.30-2,648.80

Finding the Fourth Proportional to 7,030.90, 10,542.30 and 2,648.80

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Solution

The fourth proportional to 7,030.90, 10,542.30 and 2,648.80 is: 3,971.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.90 : 10,542.30 = 2,648.80 : x
  2. Step 2: Convert to fraction form
    7,030.90/10,542.30 = 2,648.80/x
  3. Step 3: Cross multiply
    7,030.90x = 10,542.30 × 2,648.80
  4. Step 4: Simplify right side
    7,030.90x = 27,924,444.24
  5. Step 5: Solve for x
    x = 27,924,444.24/7,030.90
  6. Step 6: Final answer
    x = 3,971.67

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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.