Home / 1,440.81-2,156.22-1,177.74

Finding the Fourth Proportional to 1,440.81, 2,156.22 and 1,177.74

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Solution

The fourth proportional to 1,440.81, 2,156.22 and 1,177.74 is: 1,762.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.81 : 2,156.22 = 1,177.74 : x
  2. Step 2: Convert to fraction form
    1,440.81/2,156.22 = 1,177.74/x
  3. Step 3: Cross multiply
    1,440.81x = 2,156.22 × 1,177.74
  4. Step 4: Simplify right side
    1,440.81x = 2,539,466.54
  5. Step 5: Solve for x
    x = 2,539,466.54/1,440.81
  6. Step 6: Final answer
    x = 1,762.53

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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.