Home / 5,302.68-7,312.32-3,206.40

Finding the Fourth Proportional to 5,302.68, 7,312.32 and 3,206.40

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Solution

The fourth proportional to 5,302.68, 7,312.32 and 3,206.40 is: 4,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,302.68 : 7,312.32 = 3,206.40 : x
  2. Step 2: Convert to fraction form
    5,302.68/7,312.32 = 3,206.40/x
  3. Step 3: Cross multiply
    5,302.68x = 7,312.32 × 3,206.40
  4. Step 4: Simplify right side
    5,302.68x = 23,446,222.85
  5. Step 5: Solve for x
    x = 23,446,222.85/5,302.68
  6. Step 6: Final answer
    x = 4,421.58

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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.