Home / 1,916.09-2,642.92-1,547.04

Finding the Fourth Proportional to 1,916.09, 2,642.92 and 1,547.04

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Solution

The fourth proportional to 1,916.09, 2,642.92 and 1,547.04 is: 2,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.09 : 2,642.92 = 1,547.04 : x
  2. Step 2: Convert to fraction form
    1,916.09/2,642.92 = 1,547.04/x
  3. Step 3: Cross multiply
    1,916.09x = 2,642.92 × 1,547.04
  4. Step 4: Simplify right side
    1,916.09x = 4,088,702.96
  5. Step 5: Solve for x
    x = 4,088,702.96/1,916.09
  6. Step 6: Final answer
    x = 2,133.88

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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.