Home / 1,563.07-2,155.60-1,353.15

Finding the Fourth Proportional to 1,563.07, 2,155.60 and 1,353.15

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Solution

The fourth proportional to 1,563.07, 2,155.60 and 1,353.15 is: 1,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.07 : 2,155.60 = 1,353.15 : x
  2. Step 2: Convert to fraction form
    1,563.07/2,155.60 = 1,353.15/x
  3. Step 3: Cross multiply
    1,563.07x = 2,155.60 × 1,353.15
  4. Step 4: Simplify right side
    1,563.07x = 2,916,850.14
  5. Step 5: Solve for x
    x = 2,916,850.14/1,563.07
  6. Step 6: Final answer
    x = 1,866.10

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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.