Home / 7,341.45-10,128.74-4,154.30

Finding the Fourth Proportional to 7,341.45, 10,128.74 and 4,154.30

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Solution

The fourth proportional to 7,341.45, 10,128.74 and 4,154.30 is: 5,731.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,341.45 : 10,128.74 = 4,154.30 : x
  2. Step 2: Convert to fraction form
    7,341.45/10,128.74 = 4,154.30/x
  3. Step 3: Cross multiply
    7,341.45x = 10,128.74 × 4,154.30
  4. Step 4: Simplify right side
    7,341.45x = 42,077,824.58
  5. Step 5: Solve for x
    x = 42,077,824.58/7,341.45
  6. Step 6: Final answer
    x = 5,731.54

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Similar ratio
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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.