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Finding the Fourth Proportional to 5,130.99, 7,710.90 and 3,051.36

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Solution

The fourth proportional to 5,130.99, 7,710.90 and 3,051.36 is: 4,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.99 : 7,710.90 = 3,051.36 : x
  2. Step 2: Convert to fraction form
    5,130.99/7,710.90 = 3,051.36/x
  3. Step 3: Cross multiply
    5,130.99x = 7,710.90 × 3,051.36
  4. Step 4: Simplify right side
    5,130.99x = 23,528,731.82
  5. Step 5: Solve for x
    x = 23,528,731.82/5,130.99
  6. Step 6: Final answer
    x = 4,585.61

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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.