Home / 4,707.60-7,061.40-1,245.12

Finding the Fourth Proportional to 4,707.60, 7,061.40 and 1,245.12

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Solution

The fourth proportional to 4,707.60, 7,061.40 and 1,245.12 is: 1,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.60 : 7,061.40 = 1,245.12 : x
  2. Step 2: Convert to fraction form
    4,707.60/7,061.40 = 1,245.12/x
  3. Step 3: Cross multiply
    4,707.60x = 7,061.40 × 1,245.12
  4. Step 4: Simplify right side
    4,707.60x = 8,792,290.37
  5. Step 5: Solve for x
    x = 8,792,290.37/4,707.60
  6. Step 6: Final answer
    x = 1,867.68

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Double scale
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Similar ratio
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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.