Home / 8,742.64-13,110.91-2,897.68

Finding the Fourth Proportional to 8,742.64, 13,110.91 and 2,897.68

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Solution

The fourth proportional to 8,742.64, 13,110.91 and 2,897.68 is: 4,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.64 : 13,110.91 = 2,897.68 : x
  2. Step 2: Convert to fraction form
    8,742.64/13,110.91 = 2,897.68/x
  3. Step 3: Cross multiply
    8,742.64x = 13,110.91 × 2,897.68
  4. Step 4: Simplify right side
    8,742.64x = 37,991,221.69
  5. Step 5: Solve for x
    x = 37,991,221.69/8,742.64
  6. Step 6: Final answer
    x = 4,345.51

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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.