Home / 4,699.28-7,040.72-4,190.81

Finding the Fourth Proportional to 4,699.28, 7,040.72 and 4,190.81

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Solution

The fourth proportional to 4,699.28, 7,040.72 and 4,190.81 is: 6,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.28 : 7,040.72 = 4,190.81 : x
  2. Step 2: Convert to fraction form
    4,699.28/7,040.72 = 4,190.81/x
  3. Step 3: Cross multiply
    4,699.28x = 7,040.72 × 4,190.81
  4. Step 4: Simplify right side
    4,699.28x = 29,506,295.06
  5. Step 5: Solve for x
    x = 29,506,295.06/4,699.28
  6. Step 6: Final answer
    x = 6,278.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.