Home / 7,341.57-10,128.85-4,154.49

Finding the Fourth Proportional to 7,341.57, 10,128.85 and 4,154.49

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Solution

The fourth proportional to 7,341.57, 10,128.85 and 4,154.49 is: 5,731.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,341.57 : 10,128.85 = 4,154.49 : x
  2. Step 2: Convert to fraction form
    7,341.57/10,128.85 = 4,154.49/x
  3. Step 3: Cross multiply
    7,341.57x = 10,128.85 × 4,154.49
  4. Step 4: Simplify right side
    7,341.57x = 42,080,195.65
  5. Step 5: Solve for x
    x = 42,080,195.65/7,341.57
  6. Step 6: Final answer
    x = 5,731.77

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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.