Home / 3,210.30-4,429.44-1,865.70

Finding the Fourth Proportional to 3,210.30, 4,429.44 and 1,865.70

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Solution

The fourth proportional to 3,210.30, 4,429.44 and 1,865.70 is: 2,574.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.30 : 4,429.44 = 1,865.70 : x
  2. Step 2: Convert to fraction form
    3,210.30/4,429.44 = 1,865.70/x
  3. Step 3: Cross multiply
    3,210.30x = 4,429.44 × 1,865.70
  4. Step 4: Simplify right side
    3,210.30x = 8,264,006.21
  5. Step 5: Solve for x
    x = 8,264,006.21/3,210.30
  6. Step 6: Final answer
    x = 2,574.22

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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.