Home / 5,429.12-7,492.20-2,945.12

Finding the Fourth Proportional to 5,429.12, 7,492.20 and 2,945.12

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Solution

The fourth proportional to 5,429.12, 7,492.20 and 2,945.12 is: 4,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.12 : 7,492.20 = 2,945.12 : x
  2. Step 2: Convert to fraction form
    5,429.12/7,492.20 = 2,945.12/x
  3. Step 3: Cross multiply
    5,429.12x = 7,492.20 × 2,945.12
  4. Step 4: Simplify right side
    5,429.12x = 22,065,428.06
  5. Step 5: Solve for x
    x = 22,065,428.06/5,429.12
  6. Step 6: Final answer
    x = 4,064.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.