Home / 4,109.60-5,666.79-2,615.61

Finding the Fourth Proportional to 4,109.60, 5,666.79 and 2,615.61

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Solution

The fourth proportional to 4,109.60, 5,666.79 and 2,615.61 is: 3,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.60 : 5,666.79 = 2,615.61 : x
  2. Step 2: Convert to fraction form
    4,109.60/5,666.79 = 2,615.61/x
  3. Step 3: Cross multiply
    4,109.60x = 5,666.79 × 2,615.61
  4. Step 4: Simplify right side
    4,109.60x = 14,822,119.13
  5. Step 5: Solve for x
    x = 14,822,119.13/4,109.60
  6. Step 6: Final answer
    x = 3,606.70

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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.