Home / 2,220.66-3,065.40-1,865.34

Finding the Fourth Proportional to 2,220.66, 3,065.40 and 1,865.34

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Solution

The fourth proportional to 2,220.66, 3,065.40 and 1,865.34 is: 2,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.66 : 3,065.40 = 1,865.34 : x
  2. Step 2: Convert to fraction form
    2,220.66/3,065.40 = 1,865.34/x
  3. Step 3: Cross multiply
    2,220.66x = 3,065.40 × 1,865.34
  4. Step 4: Simplify right side
    2,220.66x = 5,718,013.24
  5. Step 5: Solve for x
    x = 5,718,013.24/2,220.66
  6. Step 6: Final answer
    x = 2,574.92

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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.