Home / 1,560.16-2,154.78-1,035.28

Finding the Fourth Proportional to 1,560.16, 2,154.78 and 1,035.28

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Solution

The fourth proportional to 1,560.16, 2,154.78 and 1,035.28 is: 1,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.16 : 2,154.78 = 1,035.28 : x
  2. Step 2: Convert to fraction form
    1,560.16/2,154.78 = 1,035.28/x
  3. Step 3: Cross multiply
    1,560.16x = 2,154.78 × 1,035.28
  4. Step 4: Simplify right side
    1,560.16x = 2,230,800.64
  5. Step 5: Solve for x
    x = 2,230,800.64/1,560.16
  6. Step 6: Final answer
    x = 1,429.85

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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.