Home / 5,429.70-7,492.95-3,071.79

Finding the Fourth Proportional to 5,429.70, 7,492.95 and 3,071.79

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Solution

The fourth proportional to 5,429.70, 7,492.95 and 3,071.79 is: 4,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.70 : 7,492.95 = 3,071.79 : x
  2. Step 2: Convert to fraction form
    5,429.70/7,492.95 = 3,071.79/x
  3. Step 3: Cross multiply
    5,429.70x = 7,492.95 × 3,071.79
  4. Step 4: Simplify right side
    5,429.70x = 23,016,768.88
  5. Step 5: Solve for x
    x = 23,016,768.88/5,429.70
  6. Step 6: Final answer
    x = 4,239.05

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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.