Home / 7,358.28-10,151.40-4,212.72

Finding the Fourth Proportional to 7,358.28, 10,151.40 and 4,212.72

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Solution

The fourth proportional to 7,358.28, 10,151.40 and 4,212.72 is: 5,811.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,358.28 : 10,151.40 = 4,212.72 : x
  2. Step 2: Convert to fraction form
    7,358.28/10,151.40 = 4,212.72/x
  3. Step 3: Cross multiply
    7,358.28x = 10,151.40 × 4,212.72
  4. Step 4: Simplify right side
    7,358.28x = 42,765,005.81
  5. Step 5: Solve for x
    x = 42,765,005.81/7,358.28
  6. Step 6: Final answer
    x = 5,811.82

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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.