Home / 1,863.61-2,572.93-1,415.51

Finding the Fourth Proportional to 1,863.61, 2,572.93 and 1,415.51

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Solution

The fourth proportional to 1,863.61, 2,572.93 and 1,415.51 is: 1,954.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.61 : 2,572.93 = 1,415.51 : x
  2. Step 2: Convert to fraction form
    1,863.61/2,572.93 = 1,415.51/x
  3. Step 3: Cross multiply
    1,863.61x = 2,572.93 × 1,415.51
  4. Step 4: Simplify right side
    1,863.61x = 3,642,006.70
  5. Step 5: Solve for x
    x = 3,642,006.70/1,863.61
  6. Step 6: Final answer
    x = 1,954.28

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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.