Home / 2,802.56-3,867.45-1,607.72

Finding the Fourth Proportional to 2,802.56, 3,867.45 and 1,607.72

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Solution

The fourth proportional to 2,802.56, 3,867.45 and 1,607.72 is: 2,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.56 : 3,867.45 = 1,607.72 : x
  2. Step 2: Convert to fraction form
    2,802.56/3,867.45 = 1,607.72/x
  3. Step 3: Cross multiply
    2,802.56x = 3,867.45 × 1,607.72
  4. Step 4: Simplify right side
    2,802.56x = 6,217,776.71
  5. Step 5: Solve for x
    x = 6,217,776.71/2,802.56
  6. Step 6: Final answer
    x = 2,218.61

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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.