Home / 7,201.60-9,931.68-4,548.16

Finding the Fourth Proportional to 7,201.60, 9,931.68 and 4,548.16

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Solution

The fourth proportional to 7,201.60, 9,931.68 and 4,548.16 is: 6,272.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.60 : 9,931.68 = 4,548.16 : x
  2. Step 2: Convert to fraction form
    7,201.60/9,931.68 = 4,548.16/x
  3. Step 3: Cross multiply
    7,201.60x = 9,931.68 × 4,548.16
  4. Step 4: Simplify right side
    7,201.60x = 45,170,869.71
  5. Step 5: Solve for x
    x = 45,170,869.71/7,201.60
  6. Step 6: Final answer
    x = 6,272.34

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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.