Home / 5,629.60-8,434.80-4,650.40

Finding the Fourth Proportional to 5,629.60, 8,434.80 and 4,650.40

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Solution

The fourth proportional to 5,629.60, 8,434.80 and 4,650.40 is: 6,967.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.60 : 8,434.80 = 4,650.40 : x
  2. Step 2: Convert to fraction form
    5,629.60/8,434.80 = 4,650.40/x
  3. Step 3: Cross multiply
    5,629.60x = 8,434.80 × 4,650.40
  4. Step 4: Simplify right side
    5,629.60x = 39,225,193.92
  5. Step 5: Solve for x
    x = 39,225,193.92/5,629.60
  6. Step 6: Final answer
    x = 6,967.67

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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.