Home / 3,639.53-5,454.72-1,557.08

Finding the Fourth Proportional to 3,639.53, 5,454.72 and 1,557.08

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Solution

The fourth proportional to 3,639.53, 5,454.72 and 1,557.08 is: 2,333.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.53 : 5,454.72 = 1,557.08 : x
  2. Step 2: Convert to fraction form
    3,639.53/5,454.72 = 1,557.08/x
  3. Step 3: Cross multiply
    3,639.53x = 5,454.72 × 1,557.08
  4. Step 4: Simplify right side
    3,639.53x = 8,493,427.63
  5. Step 5: Solve for x
    x = 8,493,427.63/3,639.53
  6. Step 6: Final answer
    x = 2,333.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.