Home / 3,011.20-4,155.68-1,752.64

Finding the Fourth Proportional to 3,011.20, 4,155.68 and 1,752.64

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Solution

The fourth proportional to 3,011.20, 4,155.68 and 1,752.64 is: 2,418.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.20 : 4,155.68 = 1,752.64 : x
  2. Step 2: Convert to fraction form
    3,011.20/4,155.68 = 1,752.64/x
  3. Step 3: Cross multiply
    3,011.20x = 4,155.68 × 1,752.64
  4. Step 4: Simplify right side
    3,011.20x = 7,283,411.00
  5. Step 5: Solve for x
    x = 7,283,411.00/3,011.20
  6. Step 6: Final answer
    x = 2,418.77

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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.