Home / 1,097.24-1,647.81-1,053.20

Finding the Fourth Proportional to 1,097.24, 1,647.81 and 1,053.20

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Solution

The fourth proportional to 1,097.24, 1,647.81 and 1,053.20 is: 1,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.24 : 1,647.81 = 1,053.20 : x
  2. Step 2: Convert to fraction form
    1,097.24/1,647.81 = 1,053.20/x
  3. Step 3: Cross multiply
    1,097.24x = 1,647.81 × 1,053.20
  4. Step 4: Simplify right side
    1,097.24x = 1,735,477.61
  5. Step 5: Solve for x
    x = 1,735,477.61/1,097.24
  6. Step 6: Final answer
    x = 1,581.68

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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.