Home / 2,557.64-3,529.36-1,438.52

Finding the Fourth Proportional to 2,557.64, 3,529.36 and 1,438.52

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Solution

The fourth proportional to 2,557.64, 3,529.36 and 1,438.52 is: 1,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.64 : 3,529.36 = 1,438.52 : x
  2. Step 2: Convert to fraction form
    2,557.64/3,529.36 = 1,438.52/x
  3. Step 3: Cross multiply
    2,557.64x = 3,529.36 × 1,438.52
  4. Step 4: Simplify right side
    2,557.64x = 5,077,054.95
  5. Step 5: Solve for x
    x = 5,077,054.95/2,557.64
  6. Step 6: Final answer
    x = 1,985.05

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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.