Home / 2,989.10-4,484.57-1,345.21

Finding the Fourth Proportional to 2,989.10, 4,484.57 and 1,345.21

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Solution

The fourth proportional to 2,989.10, 4,484.57 and 1,345.21 is: 2,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.10 : 4,484.57 = 1,345.21 : x
  2. Step 2: Convert to fraction form
    2,989.10/4,484.57 = 1,345.21/x
  3. Step 3: Cross multiply
    2,989.10x = 4,484.57 × 1,345.21
  4. Step 4: Simplify right side
    2,989.10x = 6,032,670.47
  5. Step 5: Solve for x
    x = 6,032,670.47/2,989.10
  6. Step 6: Final answer
    x = 2,018.22

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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.