Home / 4,931.75-7,395.39-1,420.94

Finding the Fourth Proportional to 4,931.75, 7,395.39 and 1,420.94

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Solution

The fourth proportional to 4,931.75, 7,395.39 and 1,420.94 is: 2,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.75 : 7,395.39 = 1,420.94 : x
  2. Step 2: Convert to fraction form
    4,931.75/7,395.39 = 1,420.94/x
  3. Step 3: Cross multiply
    4,931.75x = 7,395.39 × 1,420.94
  4. Step 4: Simplify right side
    4,931.75x = 10,508,405.47
  5. Step 5: Solve for x
    x = 10,508,405.47/4,931.75
  6. Step 6: Final answer
    x = 2,130.77

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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.