Home / 2,476.09-3,416.92-1,428.31

Finding the Fourth Proportional to 2,476.09, 3,416.92 and 1,428.31

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Solution

The fourth proportional to 2,476.09, 3,416.92 and 1,428.31 is: 1,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.09 : 3,416.92 = 1,428.31 : x
  2. Step 2: Convert to fraction form
    2,476.09/3,416.92 = 1,428.31/x
  3. Step 3: Cross multiply
    2,476.09x = 3,416.92 × 1,428.31
  4. Step 4: Simplify right side
    2,476.09x = 4,880,421.01
  5. Step 5: Solve for x
    x = 4,880,421.01/2,476.09
  6. Step 6: Final answer
    x = 1,971.02

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1.5x scale

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.