Home / 4,190.16-5,783.46-2,421.51

Finding the Fourth Proportional to 4,190.16, 5,783.46 and 2,421.51

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Solution

The fourth proportional to 4,190.16, 5,783.46 and 2,421.51 is: 3,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.16 : 5,783.46 = 2,421.51 : x
  2. Step 2: Convert to fraction form
    4,190.16/5,783.46 = 2,421.51/x
  3. Step 3: Cross multiply
    4,190.16x = 5,783.46 × 2,421.51
  4. Step 4: Simplify right side
    4,190.16x = 14,004,706.22
  5. Step 5: Solve for x
    x = 14,004,706.22/4,190.16
  6. Step 6: Final answer
    x = 3,342.28

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Half scale
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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.