Home / 5,416.47-8,128.35-4,031.37

Finding the Fourth Proportional to 5,416.47, 8,128.35 and 4,031.37

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Solution

The fourth proportional to 5,416.47, 8,128.35 and 4,031.37 is: 6,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.47 : 8,128.35 = 4,031.37 : x
  2. Step 2: Convert to fraction form
    5,416.47/8,128.35 = 4,031.37/x
  3. Step 3: Cross multiply
    5,416.47x = 8,128.35 × 4,031.37
  4. Step 4: Simplify right side
    5,416.47x = 32,768,386.34
  5. Step 5: Solve for x
    x = 32,768,386.34/5,416.47
  6. Step 6: Final answer
    x = 6,049.77

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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.