Home / 5,276.78-7,280.73-3,152.99

Finding the Fourth Proportional to 5,276.78, 7,280.73 and 3,152.99

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Solution

The fourth proportional to 5,276.78, 7,280.73 and 3,152.99 is: 4,350.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.78 : 7,280.73 = 3,152.99 : x
  2. Step 2: Convert to fraction form
    5,276.78/7,280.73 = 3,152.99/x
  3. Step 3: Cross multiply
    5,276.78x = 7,280.73 × 3,152.99
  4. Step 4: Simplify right side
    5,276.78x = 22,956,032.48
  5. Step 5: Solve for x
    x = 22,956,032.48/5,276.78
  6. Step 6: Final answer
    x = 4,350.39

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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.