Home / 7,931.25-10,945.12-4,346.21

Finding the Fourth Proportional to 7,931.25, 10,945.12 and 4,346.21

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Solution

The fourth proportional to 7,931.25, 10,945.12 and 4,346.21 is: 5,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.25 : 10,945.12 = 4,346.21 : x
  2. Step 2: Convert to fraction form
    7,931.25/10,945.12 = 4,346.21/x
  3. Step 3: Cross multiply
    7,931.25x = 10,945.12 × 4,346.21
  4. Step 4: Simplify right side
    7,931.25x = 47,569,768.26
  5. Step 5: Solve for x
    x = 47,569,768.26/7,931.25
  6. Step 6: Final answer
    x = 5,997.76

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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.