Home / 4,977.68-7,464.39-1,689.28

Finding the Fourth Proportional to 4,977.68, 7,464.39 and 1,689.28

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Solution

The fourth proportional to 4,977.68, 7,464.39 and 1,689.28 is: 2,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.68 : 7,464.39 = 1,689.28 : x
  2. Step 2: Convert to fraction form
    4,977.68/7,464.39 = 1,689.28/x
  3. Step 3: Cross multiply
    4,977.68x = 7,464.39 × 1,689.28
  4. Step 4: Simplify right side
    4,977.68x = 12,609,419.74
  5. Step 5: Solve for x
    x = 12,609,419.74/4,977.68
  6. Step 6: Final answer
    x = 2,533.19

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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.