Home / 2,725.79-3,761.90-1,547.07

Finding the Fourth Proportional to 2,725.79, 3,761.90 and 1,547.07

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Solution

The fourth proportional to 2,725.79, 3,761.90 and 1,547.07 is: 2,135.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.79 : 3,761.90 = 1,547.07 : x
  2. Step 2: Convert to fraction form
    2,725.79/3,761.90 = 1,547.07/x
  3. Step 3: Cross multiply
    2,725.79x = 3,761.90 × 1,547.07
  4. Step 4: Simplify right side
    2,725.79x = 5,819,914.90
  5. Step 5: Solve for x
    x = 5,819,914.90/2,725.79
  6. Step 6: Final answer
    x = 2,135.13

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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.