Home / 2,808.59-3,875.95-1,549.70

Finding the Fourth Proportional to 2,808.59, 3,875.95 and 1,549.70

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Solution

The fourth proportional to 2,808.59, 3,875.95 and 1,549.70 is: 2,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.59 : 3,875.95 = 1,549.70 : x
  2. Step 2: Convert to fraction form
    2,808.59/3,875.95 = 1,549.70/x
  3. Step 3: Cross multiply
    2,808.59x = 3,875.95 × 1,549.70
  4. Step 4: Simplify right side
    2,808.59x = 6,006,556.81
  5. Step 5: Solve for x
    x = 6,006,556.81/2,808.59
  6. Step 6: Final answer
    x = 2,138.64

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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.