Home / 5,145.26-7,133.13-4,878.50

Finding the Fourth Proportional to 5,145.26, 7,133.13 and 4,878.50

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Solution

The fourth proportional to 5,145.26, 7,133.13 and 4,878.50 is: 6,763.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.26 : 7,133.13 = 4,878.50 : x
  2. Step 2: Convert to fraction form
    5,145.26/7,133.13 = 4,878.50/x
  3. Step 3: Cross multiply
    5,145.26x = 7,133.13 × 4,878.50
  4. Step 4: Simplify right side
    5,145.26x = 34,798,939.04
  5. Step 5: Solve for x
    x = 34,798,939.04/5,145.26
  6. Step 6: Final answer
    x = 6,763.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.