Home / 2,803.95-3,869.40-1,625.00

Finding the Fourth Proportional to 2,803.95, 3,869.40 and 1,625.00

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Solution

The fourth proportional to 2,803.95, 3,869.40 and 1,625.00 is: 2,242.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.95 : 3,869.40 = 1,625.00 : x
  2. Step 2: Convert to fraction form
    2,803.95/3,869.40 = 1,625.00/x
  3. Step 3: Cross multiply
    2,803.95x = 3,869.40 × 1,625.00
  4. Step 4: Simplify right side
    2,803.95x = 6,287,755.65
  5. Step 5: Solve for x
    x = 6,287,755.65/2,803.95
  6. Step 6: Final answer
    x = 2,242.46

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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.