Home / 3,720.84-5,580.54-1,123.17

Finding the Fourth Proportional to 3,720.84, 5,580.54 and 1,123.17

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Solution

The fourth proportional to 3,720.84, 5,580.54 and 1,123.17 is: 1,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.84 : 5,580.54 = 1,123.17 : x
  2. Step 2: Convert to fraction form
    3,720.84/5,580.54 = 1,123.17/x
  3. Step 3: Cross multiply
    3,720.84x = 5,580.54 × 1,123.17
  4. Step 4: Simplify right side
    3,720.84x = 6,267,895.11
  5. Step 5: Solve for x
    x = 6,267,895.11/3,720.84
  6. Step 6: Final answer
    x = 1,684.54

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1.5x scale

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.