Home / 2,640.13-3,643.56-1,461.17

Finding the Fourth Proportional to 2,640.13, 3,643.56 and 1,461.17

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Solution

The fourth proportional to 2,640.13, 3,643.56 and 1,461.17 is: 2,016.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.13 : 3,643.56 = 1,461.17 : x
  2. Step 2: Convert to fraction form
    2,640.13/3,643.56 = 1,461.17/x
  3. Step 3: Cross multiply
    2,640.13x = 3,643.56 × 1,461.17
  4. Step 4: Simplify right side
    2,640.13x = 5,323,869.67
  5. Step 5: Solve for x
    x = 5,323,869.67/2,640.13
  6. Step 6: Final answer
    x = 2,016.52

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1.5x scale

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.