Home / 2,816.07-3,886.17-1,574.07

Finding the Fourth Proportional to 2,816.07, 3,886.17 and 1,574.07

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Solution

The fourth proportional to 2,816.07, 3,886.17 and 1,574.07 is: 2,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.07 : 3,886.17 = 1,574.07 : x
  2. Step 2: Convert to fraction form
    2,816.07/3,886.17 = 1,574.07/x
  3. Step 3: Cross multiply
    2,816.07x = 3,886.17 × 1,574.07
  4. Step 4: Simplify right side
    2,816.07x = 6,117,103.61
  5. Step 5: Solve for x
    x = 6,117,103.61/2,816.07
  6. Step 6: Final answer
    x = 2,172.21

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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.