Home / 2,886.46-3,983.56-1,627.76

Finding the Fourth Proportional to 2,886.46, 3,983.56 and 1,627.76

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Solution

The fourth proportional to 2,886.46, 3,983.56 and 1,627.76 is: 2,246.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.46 : 3,983.56 = 1,627.76 : x
  2. Step 2: Convert to fraction form
    2,886.46/3,983.56 = 1,627.76/x
  3. Step 3: Cross multiply
    2,886.46x = 3,983.56 × 1,627.76
  4. Step 4: Simplify right side
    2,886.46x = 6,484,279.63
  5. Step 5: Solve for x
    x = 6,484,279.63/2,886.46
  6. Step 6: Final answer
    x = 2,246.45

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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.