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Finding the Fourth Proportional to 7,345.85, 10,138.19 and 4,551.77

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Solution

The fourth proportional to 7,345.85, 10,138.19 and 4,551.77 is: 6,282.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.85 : 10,138.19 = 4,551.77 : x
  2. Step 2: Convert to fraction form
    7,345.85/10,138.19 = 4,551.77/x
  3. Step 3: Cross multiply
    7,345.85x = 10,138.19 × 4,551.77
  4. Step 4: Simplify right side
    7,345.85x = 46,146,669.78
  5. Step 5: Solve for x
    x = 46,146,669.78/7,345.85
  6. Step 6: Final answer
    x = 6,282.01

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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.