Home / 2,859.31-4,280.23-2,127.07

Finding the Fourth Proportional to 2,859.31, 4,280.23 and 2,127.07

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Solution

The fourth proportional to 2,859.31, 4,280.23 and 2,127.07 is: 3,184.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.31 : 4,280.23 = 2,127.07 : x
  2. Step 2: Convert to fraction form
    2,859.31/4,280.23 = 2,127.07/x
  3. Step 3: Cross multiply
    2,859.31x = 4,280.23 × 2,127.07
  4. Step 4: Simplify right side
    2,859.31x = 9,104,348.83
  5. Step 5: Solve for x
    x = 9,104,348.83/2,859.31
  6. Step 6: Final answer
    x = 3,184.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.