Home / 3,438.41-5,153.58-1,585.58

Finding the Fourth Proportional to 3,438.41, 5,153.58 and 1,585.58

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Solution

The fourth proportional to 3,438.41, 5,153.58 and 1,585.58 is: 2,376.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.41 : 5,153.58 = 1,585.58 : x
  2. Step 2: Convert to fraction form
    3,438.41/5,153.58 = 1,585.58/x
  3. Step 3: Cross multiply
    3,438.41x = 5,153.58 × 1,585.58
  4. Step 4: Simplify right side
    3,438.41x = 8,171,405.45
  5. Step 5: Solve for x
    x = 8,171,405.45/3,438.41
  6. Step 6: Final answer
    x = 2,376.51

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.