Home / 5,308.05-7,312.44-3,711.71

Finding the Fourth Proportional to 5,308.05, 7,312.44 and 3,711.71

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Solution

The fourth proportional to 5,308.05, 7,312.44 and 3,711.71 is: 5,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.05 : 7,312.44 = 3,711.71 : x
  2. Step 2: Convert to fraction form
    5,308.05/7,312.44 = 3,711.71/x
  3. Step 3: Cross multiply
    5,308.05x = 7,312.44 × 3,711.71
  4. Step 4: Simplify right side
    5,308.05x = 27,141,638.39
  5. Step 5: Solve for x
    x = 27,141,638.39/5,308.05
  6. Step 6: Final answer
    x = 5,113.30

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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.