Home / 1,563.02-2,345.21-913.75

Finding the Fourth Proportional to 1,563.02, 2,345.21 and 913.75

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Solution

The fourth proportional to 1,563.02, 2,345.21 and 913.75 is: 1,371.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.02 : 2,345.21 = 913.75 : x
  2. Step 2: Convert to fraction form
    1,563.02/2,345.21 = 913.75/x
  3. Step 3: Cross multiply
    1,563.02x = 2,345.21 × 913.75
  4. Step 4: Simplify right side
    1,563.02x = 2,142,935.64
  5. Step 5: Solve for x
    x = 2,142,935.64/1,563.02
  6. Step 6: Final answer
    x = 1,371.02

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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.