Home / 1,880.28-2,592.36-1,289.76

Finding the Fourth Proportional to 1,880.28, 2,592.36 and 1,289.76

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Solution

The fourth proportional to 1,880.28, 2,592.36 and 1,289.76 is: 1,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.28 : 2,592.36 = 1,289.76 : x
  2. Step 2: Convert to fraction form
    1,880.28/2,592.36 = 1,289.76/x
  3. Step 3: Cross multiply
    1,880.28x = 2,592.36 × 1,289.76
  4. Step 4: Simplify right side
    1,880.28x = 3,343,522.23
  5. Step 5: Solve for x
    x = 3,343,522.23/1,880.28
  6. Step 6: Final answer
    x = 1,778.20

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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.