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Finding the Fourth Proportional to 3,155.58, 4,355.28 and 1,829.16

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Solution

The fourth proportional to 3,155.58, 4,355.28 and 1,829.16 is: 2,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.58 : 4,355.28 = 1,829.16 : x
  2. Step 2: Convert to fraction form
    3,155.58/4,355.28 = 1,829.16/x
  3. Step 3: Cross multiply
    3,155.58x = 4,355.28 × 1,829.16
  4. Step 4: Simplify right side
    3,155.58x = 7,966,503.96
  5. Step 5: Solve for x
    x = 7,966,503.96/3,155.58
  6. Step 6: Final answer
    x = 2,524.58

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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.