Home / 3,646.77-5,034.87-2,389.65

Finding the Fourth Proportional to 3,646.77, 5,034.87 and 2,389.65

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Solution

The fourth proportional to 3,646.77, 5,034.87 and 2,389.65 is: 3,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646.77 : 5,034.87 = 2,389.65 : x
  2. Step 2: Convert to fraction form
    3,646.77/5,034.87 = 2,389.65/x
  3. Step 3: Cross multiply
    3,646.77x = 5,034.87 × 2,389.65
  4. Step 4: Simplify right side
    3,646.77x = 12,031,577.10
  5. Step 5: Solve for x
    x = 12,031,577.10/3,646.77
  6. Step 6: Final answer
    x = 3,299.24

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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.