Home / 4,928.57-7,390.90-1,807.64

Finding the Fourth Proportional to 4,928.57, 7,390.90 and 1,807.64

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Solution

The fourth proportional to 4,928.57, 7,390.90 and 1,807.64 is: 2,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.57 : 7,390.90 = 1,807.64 : x
  2. Step 2: Convert to fraction form
    4,928.57/7,390.90 = 1,807.64/x
  3. Step 3: Cross multiply
    4,928.57x = 7,390.90 × 1,807.64
  4. Step 4: Simplify right side
    4,928.57x = 13,360,086.48
  5. Step 5: Solve for x
    x = 13,360,086.48/4,928.57
  6. Step 6: Final answer
    x = 2,710.74

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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.