Home / 1,560.36-2,341.28-911.15

Finding the Fourth Proportional to 1,560.36, 2,341.28 and 911.15

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Solution

The fourth proportional to 1,560.36, 2,341.28 and 911.15 is: 1,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.36 : 2,341.28 = 911.15 : x
  2. Step 2: Convert to fraction form
    1,560.36/2,341.28 = 911.15/x
  3. Step 3: Cross multiply
    1,560.36x = 2,341.28 × 911.15
  4. Step 4: Simplify right side
    1,560.36x = 2,133,247.84
  5. Step 5: Solve for x
    x = 2,133,247.84/1,560.36
  6. Step 6: Final answer
    x = 1,367.15

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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.