Home / 3,622.34-5,430.90-2,917.64

Finding the Fourth Proportional to 3,622.34, 5,430.90 and 2,917.64

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Solution

The fourth proportional to 3,622.34, 5,430.90 and 2,917.64 is: 4,374.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.34 : 5,430.90 = 2,917.64 : x
  2. Step 2: Convert to fraction form
    3,622.34/5,430.90 = 2,917.64/x
  3. Step 3: Cross multiply
    3,622.34x = 5,430.90 × 2,917.64
  4. Step 4: Simplify right side
    3,622.34x = 15,845,411.08
  5. Step 5: Solve for x
    x = 15,845,411.08/3,622.34
  6. Step 6: Final answer
    x = 4,374.36

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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.