Home / 4,323.60-6,478.30-1,688.09

Finding the Fourth Proportional to 4,323.60, 6,478.30 and 1,688.09

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Solution

The fourth proportional to 4,323.60, 6,478.30 and 1,688.09 is: 2,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,323.60 : 6,478.30 = 1,688.09 : x
  2. Step 2: Convert to fraction form
    4,323.60/6,478.30 = 1,688.09/x
  3. Step 3: Cross multiply
    4,323.60x = 6,478.30 × 1,688.09
  4. Step 4: Simplify right side
    4,323.60x = 10,935,964.35
  5. Step 5: Solve for x
    x = 10,935,964.35/4,323.60
  6. Step 6: Final answer
    x = 2,529.37

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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.