Home / 7,077.12-9,757.44-4,712.64

Finding the Fourth Proportional to 7,077.12, 9,757.44 and 4,712.64

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Solution

The fourth proportional to 7,077.12, 9,757.44 and 4,712.64 is: 6,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.12 : 9,757.44 = 4,712.64 : x
  2. Step 2: Convert to fraction form
    7,077.12/9,757.44 = 4,712.64/x
  3. Step 3: Cross multiply
    7,077.12x = 9,757.44 × 4,712.64
  4. Step 4: Simplify right side
    7,077.12x = 45,983,302.04
  5. Step 5: Solve for x
    x = 45,983,302.04/7,077.12
  6. Step 6: Final answer
    x = 6,497.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.