Home / 3,478,923.12-4,801,438.68-2,121,583.44

Finding the Fourth Proportional to 3,478,923.12, 4,801,438.68 and 2,121,583.44

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Solution

The fourth proportional to 3,478,923.12, 4,801,438.68 and 2,121,583.44 is: 2,928,105.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,923.12 : 4,801,438.68 = 2,121,583.44 : x
  2. Step 2: Convert to fraction form
    3,478,923.12/4,801,438.68 = 2,121,583.44/x
  3. Step 3: Cross multiply
    3,478,923.12x = 4,801,438.68 × 2,121,583.44
  4. Step 4: Simplify right side
    3,478,923.12x = 10,186,652,791,663.46
  5. Step 5: Solve for x
    x = 10,186,652,791,663.46/3,478,923.12
  6. Step 6: Final answer
    x = 2,928,105.18

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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.