Home / 1,721.18-2,583.63-1,291.07

Finding the Fourth Proportional to 1,721.18, 2,583.63 and 1,291.07

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Solution

The fourth proportional to 1,721.18, 2,583.63 and 1,291.07 is: 1,938.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.18 : 2,583.63 = 1,291.07 : x
  2. Step 2: Convert to fraction form
    1,721.18/2,583.63 = 1,291.07/x
  3. Step 3: Cross multiply
    1,721.18x = 2,583.63 × 1,291.07
  4. Step 4: Simplify right side
    1,721.18x = 3,335,653.64
  5. Step 5: Solve for x
    x = 3,335,653.64/1,721.18
  6. Step 6: Final answer
    x = 1,938.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.