Home / 2,154.16-3,215.75-1,826.20

Finding the Fourth Proportional to 2,154.16, 3,215.75 and 1,826.20

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Solution

The fourth proportional to 2,154.16, 3,215.75 and 1,826.20 is: 2,726.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.16 : 3,215.75 = 1,826.20 : x
  2. Step 2: Convert to fraction form
    2,154.16/3,215.75 = 1,826.20/x
  3. Step 3: Cross multiply
    2,154.16x = 3,215.75 × 1,826.20
  4. Step 4: Simplify right side
    2,154.16x = 5,872,602.65
  5. Step 5: Solve for x
    x = 5,872,602.65/2,154.16
  6. Step 6: Final answer
    x = 2,726.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.