Home / 2,557.23-3,529.11-1,438.52

Finding the Fourth Proportional to 2,557.23, 3,529.11 and 1,438.52

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Solution

The fourth proportional to 2,557.23, 3,529.11 and 1,438.52 is: 1,985.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.23 : 3,529.11 = 1,438.52 : x
  2. Step 2: Convert to fraction form
    2,557.23/3,529.11 = 1,438.52/x
  3. Step 3: Cross multiply
    2,557.23x = 3,529.11 × 1,438.52
  4. Step 4: Simplify right side
    2,557.23x = 5,076,688.12
  5. Step 5: Solve for x
    x = 5,076,688.12/2,557.23
  6. Step 6: Final answer
    x = 1,985.23

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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.