Home / 2,492.51-3,440.90-1,931.72

Finding the Fourth Proportional to 2,492.51, 3,440.90 and 1,931.72

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Solution

The fourth proportional to 2,492.51, 3,440.90 and 1,931.72 is: 2,666.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,492.51 : 3,440.90 = 1,931.72 : x
  2. Step 2: Convert to fraction form
    2,492.51/3,440.90 = 1,931.72/x
  3. Step 3: Cross multiply
    2,492.51x = 3,440.90 × 1,931.72
  4. Step 4: Simplify right side
    2,492.51x = 6,646,842.97
  5. Step 5: Solve for x
    x = 6,646,842.97/2,492.51
  6. Step 6: Final answer
    x = 2,666.73

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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.