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Finding the Fourth Proportional to 5,316.55, 7,955.36 and 5,031.40

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Solution

The fourth proportional to 5,316.55, 7,955.36 and 5,031.40 is: 7,528.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.55 : 7,955.36 = 5,031.40 : x
  2. Step 2: Convert to fraction form
    5,316.55/7,955.36 = 5,031.40/x
  3. Step 3: Cross multiply
    5,316.55x = 7,955.36 × 5,031.40
  4. Step 4: Simplify right side
    5,316.55x = 40,026,572.89
  5. Step 5: Solve for x
    x = 40,026,572.89/5,316.55
  6. Step 6: Final answer
    x = 7,528.67

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