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Finding the Fourth Proportional to 7,384.78, 10,187.01 and 4,552.77

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Solution

The fourth proportional to 7,384.78, 10,187.01 and 4,552.77 is: 6,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.78 : 10,187.01 = 4,552.77 : x
  2. Step 2: Convert to fraction form
    7,384.78/10,187.01 = 4,552.77/x
  3. Step 3: Cross multiply
    7,384.78x = 10,187.01 × 4,552.77
  4. Step 4: Simplify right side
    7,384.78x = 46,379,113.52
  5. Step 5: Solve for x
    x = 46,379,113.52/7,384.78
  6. Step 6: Final answer
    x = 6,280.36

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Double scale
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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.