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Finding the Fourth Proportional to 7,140.51, 10,710.17 and 2,460.51

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Solution

The fourth proportional to 7,140.51, 10,710.17 and 2,460.51 is: 3,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.51 : 10,710.17 = 2,460.51 : x
  2. Step 2: Convert to fraction form
    7,140.51/10,710.17 = 2,460.51/x
  3. Step 3: Cross multiply
    7,140.51x = 10,710.17 × 2,460.51
  4. Step 4: Simplify right side
    7,140.51x = 26,352,468.08
  5. Step 5: Solve for x
    x = 26,352,468.08/7,140.51
  6. Step 6: Final answer
    x = 3,690.56

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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.