Home / 4,785.10-7,164.86-2,809.10

Finding the Fourth Proportional to 4,785.10, 7,164.86 and 2,809.10

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Solution

The fourth proportional to 4,785.10, 7,164.86 and 2,809.10 is: 4,206.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.10 : 7,164.86 = 2,809.10 : x
  2. Step 2: Convert to fraction form
    4,785.10/7,164.86 = 2,809.10/x
  3. Step 3: Cross multiply
    4,785.10x = 7,164.86 × 2,809.10
  4. Step 4: Simplify right side
    4,785.10x = 20,126,808.23
  5. Step 5: Solve for x
    x = 20,126,808.23/4,785.10
  6. Step 6: Final answer
    x = 4,206.14

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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.