Home / 5,636.48-8,458.08-3,139.76

Finding the Fourth Proportional to 5,636.48, 8,458.08 and 3,139.76

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Solution

The fourth proportional to 5,636.48, 8,458.08 and 3,139.76 is: 4,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.48 : 8,458.08 = 3,139.76 : x
  2. Step 2: Convert to fraction form
    5,636.48/8,458.08 = 3,139.76/x
  3. Step 3: Cross multiply
    5,636.48x = 8,458.08 × 3,139.76
  4. Step 4: Simplify right side
    5,636.48x = 26,556,341.26
  5. Step 5: Solve for x
    x = 26,556,341.26/5,636.48
  6. Step 6: Final answer
    x = 4,711.51

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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.