Home / 3,019.95-4,520.21-1,557.09

Finding the Fourth Proportional to 3,019.95, 4,520.21 and 1,557.09

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Solution

The fourth proportional to 3,019.95, 4,520.21 and 1,557.09 is: 2,330.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.95 : 4,520.21 = 1,557.09 : x
  2. Step 2: Convert to fraction form
    3,019.95/4,520.21 = 1,557.09/x
  3. Step 3: Cross multiply
    3,019.95x = 4,520.21 × 1,557.09
  4. Step 4: Simplify right side
    3,019.95x = 7,038,366.00
  5. Step 5: Solve for x
    x = 7,038,366.00/3,019.95
  6. Step 6: Final answer
    x = 2,330.62

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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.