Home / 4,688.40-7,030.68-1,765.14

Finding the Fourth Proportional to 4,688.40, 7,030.68 and 1,765.14

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Solution

The fourth proportional to 4,688.40, 7,030.68 and 1,765.14 is: 2,646.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.40 : 7,030.68 = 1,765.14 : x
  2. Step 2: Convert to fraction form
    4,688.40/7,030.68 = 1,765.14/x
  3. Step 3: Cross multiply
    4,688.40x = 7,030.68 × 1,765.14
  4. Step 4: Simplify right side
    4,688.40x = 12,410,134.50
  5. Step 5: Solve for x
    x = 12,410,134.50/4,688.40
  6. Step 6: Final answer
    x = 2,646.99

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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.