Home / 3,087.15-4,259.40-1,827.66

Finding the Fourth Proportional to 3,087.15, 4,259.40 and 1,827.66

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Solution

The fourth proportional to 3,087.15, 4,259.40 and 1,827.66 is: 2,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.15 : 4,259.40 = 1,827.66 : x
  2. Step 2: Convert to fraction form
    3,087.15/4,259.40 = 1,827.66/x
  3. Step 3: Cross multiply
    3,087.15x = 4,259.40 × 1,827.66
  4. Step 4: Simplify right side
    3,087.15x = 7,784,713.71
  5. Step 5: Solve for x
    x = 7,784,713.71/3,087.15
  6. Step 6: Final answer
    x = 2,521.65

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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.