Home / 7,130.48-10,679.56-3,435.35

Finding the Fourth Proportional to 7,130.48, 10,679.56 and 3,435.35

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Solution

The fourth proportional to 7,130.48, 10,679.56 and 3,435.35 is: 5,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.48 : 10,679.56 = 3,435.35 : x
  2. Step 2: Convert to fraction form
    7,130.48/10,679.56 = 3,435.35/x
  3. Step 3: Cross multiply
    7,130.48x = 10,679.56 × 3,435.35
  4. Step 4: Simplify right side
    7,130.48x = 36,688,044.56
  5. Step 5: Solve for x
    x = 36,688,044.56/7,130.48
  6. Step 6: Final answer
    x = 5,145.25

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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.