Home / 1,684.47-2,515.35-1,376.94

Finding the Fourth Proportional to 1,684.47, 2,515.35 and 1,376.94

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Solution

The fourth proportional to 1,684.47, 2,515.35 and 1,376.94 is: 2,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.47 : 2,515.35 = 1,376.94 : x
  2. Step 2: Convert to fraction form
    1,684.47/2,515.35 = 1,376.94/x
  3. Step 3: Cross multiply
    1,684.47x = 2,515.35 × 1,376.94
  4. Step 4: Simplify right side
    1,684.47x = 3,463,486.03
  5. Step 5: Solve for x
    x = 3,463,486.03/1,684.47
  6. Step 6: Final answer
    x = 2,056.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.