Home / 7,176.36-10,762.64-1,981.02

Finding the Fourth Proportional to 7,176.36, 10,762.64 and 1,981.02

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Solution

The fourth proportional to 7,176.36, 10,762.64 and 1,981.02 is: 2,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.36 : 10,762.64 = 1,981.02 : x
  2. Step 2: Convert to fraction form
    7,176.36/10,762.64 = 1,981.02/x
  3. Step 3: Cross multiply
    7,176.36x = 10,762.64 × 1,981.02
  4. Step 4: Simplify right side
    7,176.36x = 21,321,005.09
  5. Step 5: Solve for x
    x = 21,321,005.09/7,176.36
  6. Step 6: Final answer
    x = 2,971.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.