Home / 7,130.60-10,688.70-3,237.80

Finding the Fourth Proportional to 7,130.60, 10,688.70 and 3,237.80

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Solution

The fourth proportional to 7,130.60, 10,688.70 and 3,237.80 is: 4,853.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.60 : 10,688.70 = 3,237.80 : x
  2. Step 2: Convert to fraction form
    7,130.60/10,688.70 = 3,237.80/x
  3. Step 3: Cross multiply
    7,130.60x = 10,688.70 × 3,237.80
  4. Step 4: Simplify right side
    7,130.60x = 34,607,872.86
  5. Step 5: Solve for x
    x = 34,607,872.86/7,130.60
  6. Step 6: Final answer
    x = 4,853.43

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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.