Home / 1,718.49-2,369.35-1,403.40

Finding the Fourth Proportional to 1,718.49, 2,369.35 and 1,403.40

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Solution

The fourth proportional to 1,718.49, 2,369.35 and 1,403.40 is: 1,934.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.49 : 2,369.35 = 1,403.40 : x
  2. Step 2: Convert to fraction form
    1,718.49/2,369.35 = 1,403.40/x
  3. Step 3: Cross multiply
    1,718.49x = 2,369.35 × 1,403.40
  4. Step 4: Simplify right side
    1,718.49x = 3,325,145.79
  5. Step 5: Solve for x
    x = 3,325,145.79/1,718.49
  6. Step 6: Final answer
    x = 1,934.92

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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.