Home / 2,160.48-2,981.16-1,264.08

Finding the Fourth Proportional to 2,160.48, 2,981.16 and 1,264.08

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Solution

The fourth proportional to 2,160.48, 2,981.16 and 1,264.08 is: 1,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.48 : 2,981.16 = 1,264.08 : x
  2. Step 2: Convert to fraction form
    2,160.48/2,981.16 = 1,264.08/x
  3. Step 3: Cross multiply
    2,160.48x = 2,981.16 × 1,264.08
  4. Step 4: Simplify right side
    2,160.48x = 3,768,424.73
  5. Step 5: Solve for x
    x = 3,768,424.73/2,160.48
  6. Step 6: Final answer
    x = 1,744.25

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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.