Home / 4,720.10-7,077.44-4,187.12

Finding the Fourth Proportional to 4,720.10, 7,077.44 and 4,187.12

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Solution

The fourth proportional to 4,720.10, 7,077.44 and 4,187.12 is: 6,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.10 : 7,077.44 = 4,187.12 : x
  2. Step 2: Convert to fraction form
    4,720.10/7,077.44 = 4,187.12/x
  3. Step 3: Cross multiply
    4,720.10x = 7,077.44 × 4,187.12
  4. Step 4: Simplify right side
    4,720.10x = 29,634,090.57
  5. Step 5: Solve for x
    x = 29,634,090.57/4,720.10
  6. Step 6: Final answer
    x = 6,278.28

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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.