Home / 2,551.64-3,521.00-1,557.16

Finding the Fourth Proportional to 2,551.64, 3,521.00 and 1,557.16

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Solution

The fourth proportional to 2,551.64, 3,521.00 and 1,557.16 is: 2,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.64 : 3,521.00 = 1,557.16 : x
  2. Step 2: Convert to fraction form
    2,551.64/3,521.00 = 1,557.16/x
  3. Step 3: Cross multiply
    2,551.64x = 3,521.00 × 1,557.16
  4. Step 4: Simplify right side
    2,551.64x = 5,482,755.45
  5. Step 5: Solve for x
    x = 5,482,755.45/2,551.64
  6. Step 6: Final answer
    x = 2,148.72

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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.