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Finding the Fourth Proportional to 3,609.01, 4,978.95 and 2,430.46

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Solution

The fourth proportional to 3,609.01, 4,978.95 and 2,430.46 is: 3,353.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.01 : 4,978.95 = 2,430.46 : x
  2. Step 2: Convert to fraction form
    3,609.01/4,978.95 = 2,430.46/x
  3. Step 3: Cross multiply
    3,609.01x = 4,978.95 × 2,430.46
  4. Step 4: Simplify right side
    3,609.01x = 12,101,113.92
  5. Step 5: Solve for x
    x = 12,101,113.92/3,609.01
  6. Step 6: Final answer
    x = 3,353.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.