Home / 7,130.55-10,688.26-2,746.11

Finding the Fourth Proportional to 7,130.55, 10,688.26 and 2,746.11

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Solution

The fourth proportional to 7,130.55, 10,688.26 and 2,746.11 is: 4,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.55 : 10,688.26 = 2,746.11 : x
  2. Step 2: Convert to fraction form
    7,130.55/10,688.26 = 2,746.11/x
  3. Step 3: Cross multiply
    7,130.55x = 10,688.26 × 2,746.11
  4. Step 4: Simplify right side
    7,130.55x = 29,351,137.67
  5. Step 5: Solve for x
    x = 29,351,137.67/7,130.55
  6. Step 6: Final answer
    x = 4,116.25

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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.