Home / 1,812.56-2,501.16-1,440.44

Finding the Fourth Proportional to 1,812.56, 2,501.16 and 1,440.44

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Solution

The fourth proportional to 1,812.56, 2,501.16 and 1,440.44 is: 1,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.56 : 2,501.16 = 1,440.44 : x
  2. Step 2: Convert to fraction form
    1,812.56/2,501.16 = 1,440.44/x
  3. Step 3: Cross multiply
    1,812.56x = 2,501.16 × 1,440.44
  4. Step 4: Simplify right side
    1,812.56x = 3,602,770.91
  5. Step 5: Solve for x
    x = 3,602,770.91/1,812.56
  6. Step 6: Final answer
    x = 1,987.67

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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.