Home / 3,225.60-4,840-1,277.76

Finding the Fourth Proportional to 3,225.60, 4,840 and 1,277.76

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Solution

The fourth proportional to 3,225.60, 4,840 and 1,277.76 is: 1,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.60 : 4,840 = 1,277.76 : x
  2. Step 2: Convert to fraction form
    3,225.60/4,840 = 1,277.76/x
  3. Step 3: Cross multiply
    3,225.60x = 4,840 × 1,277.76
  4. Step 4: Simplify right side
    3,225.60x = 6,184,358.40
  5. Step 5: Solve for x
    x = 6,184,358.40/3,225.60
  6. Step 6: Final answer
    x = 1,917.27

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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.