Home / 5,150.30-7,108.58-2,913.47

Finding the Fourth Proportional to 5,150.30, 7,108.58 and 2,913.47

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Solution

The fourth proportional to 5,150.30, 7,108.58 and 2,913.47 is: 4,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.30 : 7,108.58 = 2,913.47 : x
  2. Step 2: Convert to fraction form
    5,150.30/7,108.58 = 2,913.47/x
  3. Step 3: Cross multiply
    5,150.30x = 7,108.58 × 2,913.47
  4. Step 4: Simplify right side
    5,150.30x = 20,710,634.57
  5. Step 5: Solve for x
    x = 20,710,634.57/5,150.30
  6. Step 6: Final answer
    x = 4,021.25

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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.