Home / 1,495.20-2,061.36-1,261.92

Finding the Fourth Proportional to 1,495.20, 2,061.36 and 1,261.92

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Solution

The fourth proportional to 1,495.20, 2,061.36 and 1,261.92 is: 1,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.20 : 2,061.36 = 1,261.92 : x
  2. Step 2: Convert to fraction form
    1,495.20/2,061.36 = 1,261.92/x
  3. Step 3: Cross multiply
    1,495.20x = 2,061.36 × 1,261.92
  4. Step 4: Simplify right side
    1,495.20x = 2,601,271.41
  5. Step 5: Solve for x
    x = 2,601,271.41/1,495.20
  6. Step 6: Final answer
    x = 1,739.75

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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.