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Finding the Fourth Proportional to 7,130.08, 9,835.79 and 4,771.77

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Solution

The fourth proportional to 7,130.08, 9,835.79 and 4,771.77 is: 6,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.08 : 9,835.79 = 4,771.77 : x
  2. Step 2: Convert to fraction form
    7,130.08/9,835.79 = 4,771.77/x
  3. Step 3: Cross multiply
    7,130.08x = 9,835.79 × 4,771.77
  4. Step 4: Simplify right side
    7,130.08x = 46,934,127.65
  5. Step 5: Solve for x
    x = 46,934,127.65/7,130.08
  6. Step 6: Final answer
    x = 6,582.55

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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.