Home / 6,307.40-8,709.72-3,953.60

Finding the Fourth Proportional to 6,307.40, 8,709.72 and 3,953.60

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Solution

The fourth proportional to 6,307.40, 8,709.72 and 3,953.60 is: 5,459.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.40 : 8,709.72 = 3,953.60 : x
  2. Step 2: Convert to fraction form
    6,307.40/8,709.72 = 3,953.60/x
  3. Step 3: Cross multiply
    6,307.40x = 8,709.72 × 3,953.60
  4. Step 4: Simplify right side
    6,307.40x = 34,434,748.99
  5. Step 5: Solve for x
    x = 34,434,748.99/6,307.40
  6. Step 6: Final answer
    x = 5,459.42

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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.