Home / 4,889.60-7,332.87-1,769.20

Finding the Fourth Proportional to 4,889.60, 7,332.87 and 1,769.20

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Solution

The fourth proportional to 4,889.60, 7,332.87 and 1,769.20 is: 2,653.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.60 : 7,332.87 = 1,769.20 : x
  2. Step 2: Convert to fraction form
    4,889.60/7,332.87 = 1,769.20/x
  3. Step 3: Cross multiply
    4,889.60x = 7,332.87 × 1,769.20
  4. Step 4: Simplify right side
    4,889.60x = 12,973,313.60
  5. Step 5: Solve for x
    x = 12,973,313.60/4,889.60
  6. Step 6: Final answer
    x = 2,653.25

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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.