Home / 2,476.32-3,417.42-1,428.38

Finding the Fourth Proportional to 2,476.32, 3,417.42 and 1,428.38

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Solution

The fourth proportional to 2,476.32, 3,417.42 and 1,428.38 is: 1,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.32 : 3,417.42 = 1,428.38 : x
  2. Step 2: Convert to fraction form
    2,476.32/3,417.42 = 1,428.38/x
  3. Step 3: Cross multiply
    2,476.32x = 3,417.42 × 1,428.38
  4. Step 4: Simplify right side
    2,476.32x = 4,881,357.29
  5. Step 5: Solve for x
    x = 4,881,357.29/2,476.32
  6. Step 6: Final answer
    x = 1,971.21

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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.