Home / 1,710.45-2,360.91-1,121.03

Finding the Fourth Proportional to 1,710.45, 2,360.91 and 1,121.03

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Solution

The fourth proportional to 1,710.45, 2,360.91 and 1,121.03 is: 1,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.45 : 2,360.91 = 1,121.03 : x
  2. Step 2: Convert to fraction form
    1,710.45/2,360.91 = 1,121.03/x
  3. Step 3: Cross multiply
    1,710.45x = 2,360.91 × 1,121.03
  4. Step 4: Simplify right side
    1,710.45x = 2,646,639.13
  5. Step 5: Solve for x
    x = 2,646,639.13/1,710.45
  6. Step 6: Final answer
    x = 1,547.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.