Home / 7,931.81-10,945.66-4,346.72

Finding the Fourth Proportional to 7,931.81, 10,945.66 and 4,346.72

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Solution

The fourth proportional to 7,931.81, 10,945.66 and 4,346.72 is: 5,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.81 : 10,945.66 = 4,346.72 : x
  2. Step 2: Convert to fraction form
    7,931.81/10,945.66 = 4,346.72/x
  3. Step 3: Cross multiply
    7,931.81x = 10,945.66 × 4,346.72
  4. Step 4: Simplify right side
    7,931.81x = 47,577,721.40
  5. Step 5: Solve for x
    x = 47,577,721.40/7,931.81
  6. Step 6: Final answer
    x = 5,998.35

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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.