Home / 4,753.10-7,130.10-1,979.71

Finding the Fourth Proportional to 4,753.10, 7,130.10 and 1,979.71

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Solution

The fourth proportional to 4,753.10, 7,130.10 and 1,979.71 is: 2,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,753.10 : 7,130.10 = 1,979.71 : x
  2. Step 2: Convert to fraction form
    4,753.10/7,130.10 = 1,979.71/x
  3. Step 3: Cross multiply
    4,753.10x = 7,130.10 × 1,979.71
  4. Step 4: Simplify right side
    4,753.10x = 14,115,530.27
  5. Step 5: Solve for x
    x = 14,115,530.27/4,753.10
  6. Step 6: Final answer
    x = 2,969.75

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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.