Home / 2,783.61-3,841.74-1,665.17

Finding the Fourth Proportional to 2,783.61, 3,841.74 and 1,665.17

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Solution

The fourth proportional to 2,783.61, 3,841.74 and 1,665.17 is: 2,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.61 : 3,841.74 = 1,665.17 : x
  2. Step 2: Convert to fraction form
    2,783.61/3,841.74 = 1,665.17/x
  3. Step 3: Cross multiply
    2,783.61x = 3,841.74 × 1,665.17
  4. Step 4: Simplify right side
    2,783.61x = 6,397,150.20
  5. Step 5: Solve for x
    x = 6,397,150.20/2,783.61
  6. Step 6: Final answer
    x = 2,298.15

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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.