Home / 4,749.60-7,124.81-1,240.07

Finding the Fourth Proportional to 4,749.60, 7,124.81 and 1,240.07

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Solution

The fourth proportional to 4,749.60, 7,124.81 and 1,240.07 is: 1,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.60 : 7,124.81 = 1,240.07 : x
  2. Step 2: Convert to fraction form
    4,749.60/7,124.81 = 1,240.07/x
  3. Step 3: Cross multiply
    4,749.60x = 7,124.81 × 1,240.07
  4. Step 4: Simplify right side
    4,749.60x = 8,835,274.75
  5. Step 5: Solve for x
    x = 8,835,274.75/4,749.60
  6. Step 6: Final answer
    x = 1,860.21

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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.