Home / 5,285.73-7,277.71-4,487.40

Finding the Fourth Proportional to 5,285.73, 7,277.71 and 4,487.40

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Solution

The fourth proportional to 5,285.73, 7,277.71 and 4,487.40 is: 6,178.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.73 : 7,277.71 = 4,487.40 : x
  2. Step 2: Convert to fraction form
    5,285.73/7,277.71 = 4,487.40/x
  3. Step 3: Cross multiply
    5,285.73x = 7,277.71 × 4,487.40
  4. Step 4: Simplify right side
    5,285.73x = 32,657,995.85
  5. Step 5: Solve for x
    x = 32,657,995.85/5,285.73
  6. Step 6: Final answer
    x = 6,178.52

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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.