Home / 3,875.09-5,347.13-2,618.87

Finding the Fourth Proportional to 3,875.09, 5,347.13 and 2,618.87

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Solution

The fourth proportional to 3,875.09, 5,347.13 and 2,618.87 is: 3,613.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.09 : 5,347.13 = 2,618.87 : x
  2. Step 2: Convert to fraction form
    3,875.09/5,347.13 = 2,618.87/x
  3. Step 3: Cross multiply
    3,875.09x = 5,347.13 × 2,618.87
  4. Step 4: Simplify right side
    3,875.09x = 14,003,458.26
  5. Step 5: Solve for x
    x = 14,003,458.26/3,875.09
  6. Step 6: Final answer
    x = 3,613.72

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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.