Home / 2,810.12-3,875.31-2,103.66

Finding the Fourth Proportional to 2,810.12, 3,875.31 and 2,103.66

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Solution

The fourth proportional to 2,810.12, 3,875.31 and 2,103.66 is: 2,901.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.12 : 3,875.31 = 2,103.66 : x
  2. Step 2: Convert to fraction form
    2,810.12/3,875.31 = 2,103.66/x
  3. Step 3: Cross multiply
    2,810.12x = 3,875.31 × 2,103.66
  4. Step 4: Simplify right side
    2,810.12x = 8,152,334.63
  5. Step 5: Solve for x
    x = 8,152,334.63/2,810.12
  6. Step 6: Final answer
    x = 2,901.07

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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.