Home / 7,337.54-10,125.81-3,980.19

Finding the Fourth Proportional to 7,337.54, 10,125.81 and 3,980.19

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Solution

The fourth proportional to 7,337.54, 10,125.81 and 3,980.19 is: 5,492.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,337.54 : 10,125.81 = 3,980.19 : x
  2. Step 2: Convert to fraction form
    7,337.54/10,125.81 = 3,980.19/x
  3. Step 3: Cross multiply
    7,337.54x = 10,125.81 × 3,980.19
  4. Step 4: Simplify right side
    7,337.54x = 40,302,628.72
  5. Step 5: Solve for x
    x = 40,302,628.72/7,337.54
  6. Step 6: Final answer
    x = 5,492.66

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Half scale
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Double scale
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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.