Home / 7,312.08-10,090.64-3,954.89

Finding the Fourth Proportional to 7,312.08, 10,090.64 and 3,954.89

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Solution

The fourth proportional to 7,312.08, 10,090.64 and 3,954.89 is: 5,457.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.08 : 10,090.64 = 3,954.89 : x
  2. Step 2: Convert to fraction form
    7,312.08/10,090.64 = 3,954.89/x
  3. Step 3: Cross multiply
    7,312.08x = 10,090.64 × 3,954.89
  4. Step 4: Simplify right side
    7,312.08x = 39,907,371.23
  5. Step 5: Solve for x
    x = 39,907,371.23/7,312.08
  6. Step 6: Final answer
    x = 5,457.73

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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.