Home / 5,439.60-7,515.72-5,110.74

Finding the Fourth Proportional to 5,439.60, 7,515.72 and 5,110.74

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Solution

The fourth proportional to 5,439.60, 7,515.72 and 5,110.74 is: 7,061.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.60 : 7,515.72 = 5,110.74 : x
  2. Step 2: Convert to fraction form
    5,439.60/7,515.72 = 5,110.74/x
  3. Step 3: Cross multiply
    5,439.60x = 7,515.72 × 5,110.74
  4. Step 4: Simplify right side
    5,439.60x = 38,410,890.83
  5. Step 5: Solve for x
    x = 38,410,890.83/5,439.60
  6. Step 6: Final answer
    x = 7,061.34

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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.