Home / 2,671.32-3,685.28-1,551.45

Finding the Fourth Proportional to 2,671.32, 3,685.28 and 1,551.45

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Solution

The fourth proportional to 2,671.32, 3,685.28 and 1,551.45 is: 2,140.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.32 : 3,685.28 = 1,551.45 : x
  2. Step 2: Convert to fraction form
    2,671.32/3,685.28 = 1,551.45/x
  3. Step 3: Cross multiply
    2,671.32x = 3,685.28 × 1,551.45
  4. Step 4: Simplify right side
    2,671.32x = 5,717,519.90
  5. Step 5: Solve for x
    x = 5,717,519.90/2,671.32
  6. Step 6: Final answer
    x = 2,140.34

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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.