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Finding the Fourth Proportional to 4,572.65, 6,859.23 and 1,285.49

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Solution

The fourth proportional to 4,572.65, 6,859.23 and 1,285.49 is: 1,928.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,572.65 : 6,859.23 = 1,285.49 : x
  2. Step 2: Convert to fraction form
    4,572.65/6,859.23 = 1,285.49/x
  3. Step 3: Cross multiply
    4,572.65x = 6,859.23 × 1,285.49
  4. Step 4: Simplify right side
    4,572.65x = 8,817,471.57
  5. Step 5: Solve for x
    x = 8,817,471.57/4,572.65
  6. Step 6: Final answer
    x = 1,928.31

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Double scale
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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.