Home / 1,345.84-2,019.14-1,217.32

Finding the Fourth Proportional to 1,345.84, 2,019.14 and 1,217.32

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Solution

The fourth proportional to 1,345.84, 2,019.14 and 1,217.32 is: 1,826.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.84 : 2,019.14 = 1,217.32 : x
  2. Step 2: Convert to fraction form
    1,345.84/2,019.14 = 1,217.32/x
  3. Step 3: Cross multiply
    1,345.84x = 2,019.14 × 1,217.32
  4. Step 4: Simplify right side
    1,345.84x = 2,457,939.50
  5. Step 5: Solve for x
    x = 2,457,939.50/1,345.84
  6. Step 6: Final answer
    x = 1,826.32

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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.