Home / 3,639.31-5,458.98-1,557.56

Finding the Fourth Proportional to 3,639.31, 5,458.98 and 1,557.56

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Solution

The fourth proportional to 3,639.31, 5,458.98 and 1,557.56 is: 2,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.31 : 5,458.98 = 1,557.56 : x
  2. Step 2: Convert to fraction form
    3,639.31/5,458.98 = 1,557.56/x
  3. Step 3: Cross multiply
    3,639.31x = 5,458.98 × 1,557.56
  4. Step 4: Simplify right side
    3,639.31x = 8,502,688.89
  5. Step 5: Solve for x
    x = 8,502,688.89/3,639.31
  6. Step 6: Final answer
    x = 2,336.35

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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.