Home / 7,337.39-10,125.58-3,980.18

Finding the Fourth Proportional to 7,337.39, 10,125.58 and 3,980.18

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Solution

The fourth proportional to 7,337.39, 10,125.58 and 3,980.18 is: 5,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,337.39 : 10,125.58 = 3,980.18 : x
  2. Step 2: Convert to fraction form
    7,337.39/10,125.58 = 3,980.18/x
  3. Step 3: Cross multiply
    7,337.39x = 10,125.58 × 3,980.18
  4. Step 4: Simplify right side
    7,337.39x = 40,301,631.00
  5. Step 5: Solve for x
    x = 40,301,631.00/7,337.39
  6. Step 6: Final answer
    x = 5,492.64

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Half scale
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Double scale
Find fourth proportional to 7,338.39, 10,126.96 and 3,981.18
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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.