Home / 5,325.02-7,981.55-1,811.75

Finding the Fourth Proportional to 5,325.02, 7,981.55 and 1,811.75

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Solution

The fourth proportional to 5,325.02, 7,981.55 and 1,811.75 is: 2,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.02 : 7,981.55 = 1,811.75 : x
  2. Step 2: Convert to fraction form
    5,325.02/7,981.55 = 1,811.75/x
  3. Step 3: Cross multiply
    5,325.02x = 7,981.55 × 1,811.75
  4. Step 4: Simplify right side
    5,325.02x = 14,460,524.25
  5. Step 5: Solve for x
    x = 14,460,524.25/5,325.02
  6. Step 6: Final answer
    x = 2,715.58

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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.