Home / 1,345.03-2,017.55-371.18

Finding the Fourth Proportional to 1,345.03, 2,017.55 and 371.18

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Solution

The fourth proportional to 1,345.03, 2,017.55 and 371.18 is: 556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.03 : 2,017.55 = 371.18 : x
  2. Step 2: Convert to fraction form
    1,345.03/2,017.55 = 371.18/x
  3. Step 3: Cross multiply
    1,345.03x = 2,017.55 × 371.18
  4. Step 4: Simplify right side
    1,345.03x = 748,874.21
  5. Step 5: Solve for x
    x = 748,874.21/1,345.03
  6. Step 6: Final answer
    x = 556.77

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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.