Home / 7,342.70-10,130.45-4,155.57

Finding the Fourth Proportional to 7,342.70, 10,130.45 and 4,155.57

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Solution

The fourth proportional to 7,342.70, 10,130.45 and 4,155.57 is: 5,733.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.70 : 10,130.45 = 4,155.57 : x
  2. Step 2: Convert to fraction form
    7,342.70/10,130.45 = 4,155.57/x
  3. Step 3: Cross multiply
    7,342.70x = 10,130.45 × 4,155.57
  4. Step 4: Simplify right side
    7,342.70x = 42,097,773.33
  5. Step 5: Solve for x
    x = 42,097,773.33/7,342.70
  6. Step 6: Final answer
    x = 5,733.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.