Home / 3,655.29-5,037.89-2,911.71

Finding the Fourth Proportional to 3,655.29, 5,037.89 and 2,911.71

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Solution

The fourth proportional to 3,655.29, 5,037.89 and 2,911.71 is: 4,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.29 : 5,037.89 = 2,911.71 : x
  2. Step 2: Convert to fraction form
    3,655.29/5,037.89 = 2,911.71/x
  3. Step 3: Cross multiply
    3,655.29x = 5,037.89 × 2,911.71
  4. Step 4: Simplify right side
    3,655.29x = 14,668,860.13
  5. Step 5: Solve for x
    x = 14,668,860.13/3,655.29
  6. Step 6: Final answer
    x = 4,013.05

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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.