Home / 3,785,105.92-5,223,378.72-2,153,478.16

Finding the Fourth Proportional to 3,785,105.92, 5,223,378.72 and 2,153,478.16

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Solution

The fourth proportional to 3,785,105.92, 5,223,378.72 and 2,153,478.16 is: 2,971,761.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785,105.92 : 5,223,378.72 = 2,153,478.16 : x
  2. Step 2: Convert to fraction form
    3,785,105.92/5,223,378.72 = 2,153,478.16/x
  3. Step 3: Cross multiply
    3,785,105.92x = 5,223,378.72 × 2,153,478.16
  4. Step 4: Simplify right side
    3,785,105.92x = 11,248,431,994,928.76
  5. Step 5: Solve for x
    x = 11,248,431,994,928.76/3,785,105.92
  6. Step 6: Final answer
    x = 2,971,761.49

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Double scale
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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.