Home / 2,254.51-3,111.12-1,246.18

Finding the Fourth Proportional to 2,254.51, 3,111.12 and 1,246.18

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Solution

The fourth proportional to 2,254.51, 3,111.12 and 1,246.18 is: 1,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.51 : 3,111.12 = 1,246.18 : x
  2. Step 2: Convert to fraction form
    2,254.51/3,111.12 = 1,246.18/x
  3. Step 3: Cross multiply
    2,254.51x = 3,111.12 × 1,246.18
  4. Step 4: Simplify right side
    2,254.51x = 3,877,031.09
  5. Step 5: Solve for x
    x = 3,877,031.09/2,254.51
  6. Step 6: Final answer
    x = 1,719.67

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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.