Home / 5,478.81-7,560.98-3,089.75

Finding the Fourth Proportional to 5,478.81, 7,560.98 and 3,089.75

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Solution

The fourth proportional to 5,478.81, 7,560.98 and 3,089.75 is: 4,263.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.81 : 7,560.98 = 3,089.75 : x
  2. Step 2: Convert to fraction form
    5,478.81/7,560.98 = 3,089.75/x
  3. Step 3: Cross multiply
    5,478.81x = 7,560.98 × 3,089.75
  4. Step 4: Simplify right side
    5,478.81x = 23,361,509.32
  5. Step 5: Solve for x
    x = 23,361,509.32/5,478.81
  6. Step 6: Final answer
    x = 4,263.97

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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.