Home / 4,727.12-7,090.64-2,878.76

Finding the Fourth Proportional to 4,727.12, 7,090.64 and 2,878.76

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Solution

The fourth proportional to 4,727.12, 7,090.64 and 2,878.76 is: 4,318.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,727.12 : 7,090.64 = 2,878.76 : x
  2. Step 2: Convert to fraction form
    4,727.12/7,090.64 = 2,878.76/x
  3. Step 3: Cross multiply
    4,727.12x = 7,090.64 × 2,878.76
  4. Step 4: Simplify right side
    4,727.12x = 20,412,250.81
  5. Step 5: Solve for x
    x = 20,412,250.81/4,727.12
  6. Step 6: Final answer
    x = 4,318.12

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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.