Home / 5,390.16-8,087.64-5,302.68

Finding the Fourth Proportional to 5,390.16, 8,087.64 and 5,302.68

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Solution

The fourth proportional to 5,390.16, 8,087.64 and 5,302.68 is: 7,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.16 : 8,087.64 = 5,302.68 : x
  2. Step 2: Convert to fraction form
    5,390.16/8,087.64 = 5,302.68/x
  3. Step 3: Cross multiply
    5,390.16x = 8,087.64 × 5,302.68
  4. Step 4: Simplify right side
    5,390.16x = 42,886,166.88
  5. Step 5: Solve for x
    x = 42,886,166.88/5,390.16
  6. Step 6: Final answer
    x = 7,956.38

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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.