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Finding the Fourth Proportional to 5,479.76, 7,561.68 and 4,303.64

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Solution

The fourth proportional to 5,479.76, 7,561.68 and 4,303.64 is: 5,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.76 : 7,561.68 = 4,303.64 : x
  2. Step 2: Convert to fraction form
    5,479.76/7,561.68 = 4,303.64/x
  3. Step 3: Cross multiply
    5,479.76x = 7,561.68 × 4,303.64
  4. Step 4: Simplify right side
    5,479.76x = 32,542,748.52
  5. Step 5: Solve for x
    x = 32,542,748.52/5,479.76
  6. Step 6: Final answer
    x = 5,938.72

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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.