Home / 7,341.05-10,130.47-3,983.72

Finding the Fourth Proportional to 7,341.05, 10,130.47 and 3,983.72

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Solution

The fourth proportional to 7,341.05, 10,130.47 and 3,983.72 is: 5,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,341.05 : 10,130.47 = 3,983.72 : x
  2. Step 2: Convert to fraction form
    7,341.05/10,130.47 = 3,983.72/x
  3. Step 3: Cross multiply
    7,341.05x = 10,130.47 × 3,983.72
  4. Step 4: Simplify right side
    7,341.05x = 40,356,895.34
  5. Step 5: Solve for x
    x = 40,356,895.34/7,341.05
  6. Step 6: Final answer
    x = 5,497.43

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Half scale
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Double scale
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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.