Home / 1,345.02-2,017.64-371.20

Finding the Fourth Proportional to 1,345.02, 2,017.64 and 371.20

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Solution

The fourth proportional to 1,345.02, 2,017.64 and 371.20 is: 556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.02 : 2,017.64 = 371.20 : x
  2. Step 2: Convert to fraction form
    1,345.02/2,017.64 = 371.20/x
  3. Step 3: Cross multiply
    1,345.02x = 2,017.64 × 371.20
  4. Step 4: Simplify right side
    1,345.02x = 748,947.97
  5. Step 5: Solve for x
    x = 748,947.97/1,345.02
  6. Step 6: Final answer
    x = 556.83

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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.