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Finding the Fourth Proportional to 3,358.40, 4,705.60 and 3,358.40

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Solution

The fourth proportional to 3,358.40, 4,705.60 and 3,358.40 is: 4,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.40 : 4,705.60 = 3,358.40 : x
  2. Step 2: Convert to fraction form
    3,358.40/4,705.60 = 3,358.40/x
  3. Step 3: Cross multiply
    3,358.40x = 4,705.60 × 3,358.40
  4. Step 4: Simplify right side
    3,358.40x = 15,803,287.04
  5. Step 5: Solve for x
    x = 15,803,287.04/3,358.40
  6. Step 6: Final answer
    x = 4,705.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.