Home / 4,807.05-7,210.58-4,272.45

Finding the Fourth Proportional to 4,807.05, 7,210.58 and 4,272.45

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Solution

The fourth proportional to 4,807.05, 7,210.58 and 4,272.45 is: 6,408.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.05 : 7,210.58 = 4,272.45 : x
  2. Step 2: Convert to fraction form
    4,807.05/7,210.58 = 4,272.45/x
  3. Step 3: Cross multiply
    4,807.05x = 7,210.58 × 4,272.45
  4. Step 4: Simplify right side
    4,807.05x = 30,806,821.16
  5. Step 5: Solve for x
    x = 30,806,821.16/4,807.05
  6. Step 6: Final answer
    x = 6,408.68

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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.