Home / 5,015.88-6,925.30-3,130.34

Finding the Fourth Proportional to 5,015.88, 6,925.30 and 3,130.34

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Solution

The fourth proportional to 5,015.88, 6,925.30 and 3,130.34 is: 4,321.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.88 : 6,925.30 = 3,130.34 : x
  2. Step 2: Convert to fraction form
    5,015.88/6,925.30 = 3,130.34/x
  3. Step 3: Cross multiply
    5,015.88x = 6,925.30 × 3,130.34
  4. Step 4: Simplify right side
    5,015.88x = 21,678,501.15
  5. Step 5: Solve for x
    x = 21,678,501.15/5,015.88
  6. Step 6: Final answer
    x = 4,321.97

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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.