Home / 1,913.17-2,637.51-1,282.60

Finding the Fourth Proportional to 1,913.17, 2,637.51 and 1,282.60

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Solution

The fourth proportional to 1,913.17, 2,637.51 and 1,282.60 is: 1,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.17 : 2,637.51 = 1,282.60 : x
  2. Step 2: Convert to fraction form
    1,913.17/2,637.51 = 1,282.60/x
  3. Step 3: Cross multiply
    1,913.17x = 2,637.51 × 1,282.60
  4. Step 4: Simplify right side
    1,913.17x = 3,382,870.33
  5. Step 5: Solve for x
    x = 3,382,870.33/1,913.17
  6. Step 6: Final answer
    x = 1,768.20

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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.