Home / 2,239.76-3,360.60-1,264.40

Finding the Fourth Proportional to 2,239.76, 3,360.60 and 1,264.40

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Solution

The fourth proportional to 2,239.76, 3,360.60 and 1,264.40 is: 1,897.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.76 : 3,360.60 = 1,264.40 : x
  2. Step 2: Convert to fraction form
    2,239.76/3,360.60 = 1,264.40/x
  3. Step 3: Cross multiply
    2,239.76x = 3,360.60 × 1,264.40
  4. Step 4: Simplify right side
    2,239.76x = 4,249,142.64
  5. Step 5: Solve for x
    x = 4,249,142.64/2,239.76
  6. Step 6: Final answer
    x = 1,897.14

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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.