Home / 4,899.88-6,758.48-3,130.70

Finding the Fourth Proportional to 4,899.88, 6,758.48 and 3,130.70

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Solution

The fourth proportional to 4,899.88, 6,758.48 and 3,130.70 is: 4,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.88 : 6,758.48 = 3,130.70 : x
  2. Step 2: Convert to fraction form
    4,899.88/6,758.48 = 3,130.70/x
  3. Step 3: Cross multiply
    4,899.88x = 6,758.48 × 3,130.70
  4. Step 4: Simplify right side
    4,899.88x = 21,158,773.34
  5. Step 5: Solve for x
    x = 21,158,773.34/4,899.88
  6. Step 6: Final answer
    x = 4,318.22

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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.