Home / 4,931.15-7,395.63-1,420.41

Finding the Fourth Proportional to 4,931.15, 7,395.63 and 1,420.41

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Solution

The fourth proportional to 4,931.15, 7,395.63 and 1,420.41 is: 2,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.15 : 7,395.63 = 1,420.41 : x
  2. Step 2: Convert to fraction form
    4,931.15/7,395.63 = 1,420.41/x
  3. Step 3: Cross multiply
    4,931.15x = 7,395.63 × 1,420.41
  4. Step 4: Simplify right side
    4,931.15x = 10,504,832.41
  5. Step 5: Solve for x
    x = 10,504,832.41/4,931.15
  6. Step 6: Final answer
    x = 2,130.30

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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.